World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 126 2938 2742 297 285 558 64355

A. D. Smith publications per year

The chart shows the history of publications by A. D. Smith between 1950 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. A. D. Smith published across 77 years, from 1950 to 2026, averaging 11.6 papers a year. Output peaked at 58 publications in 2002. 19 of the 891 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1950 to 2026. Vertical axis: number of publications, 0 to 58. Peak 58 publications in 2002. 1950: 1 publication 1951: 0 publications 1952: 0 publications 1953: 2 publications 1954: 0 publications 1955: 0 publications 1956: 0 publications 1957: 0 publications 1958: 0 publications 1959: 2 publications 1960: 1 publication 1961: 5 publications 1962: 2 publications 1963: 1 publication 1964: 5 publications 1965: 4 publications 1966: 3 publications 1967: 12 publications 1968: 8 publications 1969: 8 publications 1970: 9 publications 1971: 13 publications 1972: 17 publications 1973: 7 publications 1974: 14 publications 1975: 16 publications 1976: 22 publications 1977: 10 publications 1978: 15 publications 1979: 20 publications 1980: 9 publications 1981: 11 publications 1982: 19 publications 1983: 19 publications 1984: 23 publications 1985: 23 publications 1986: 10 publications 1987: 16 publications 1988: 17 publications 1989: 22 publications 1990: 18 publications 1991: 18 publications 1992: 23 publications 1993: 12 publications 1994: 9 publications 1995: 11 publications 1996: 14 publications 1997: 14 publications 1998: 15 publications 1999: 7 publications 2000: 10 publications 2001: 8 publications 2002: 58 publications 2003: 8 publications 2004: 8 publications 2005: 8 publications 2006: 13 publications 2007: 11 publications 2008: 24 publications 2009: 24 publications 2010: 23 publications 2011: 16 publications 2012: 19 publications 2013: 14 publications 2014: 15 publications 2015: 12 publications 2016: 10 publications 2017: 10 publications 2018: 12 publications 2019: 10 publications 2020: 13 publications 2021: 14 publications 2022: 10 publications 2023: 10 publications 2024: 5 publications 2025: 11 publications 2026: 8 publications
1950 2026

891 publications in total across all disciplines

View publications per year as a table
A. D. Smith: publications per year, 1950 to 2026
Year Publications
1950 1
1951 0
1952 0
1953 2
1954 0
1955 0
1956 0
1957 0
1958 0
1959 2
1960 1
1961 5
1962 2
1963 1
1964 5
1965 4
1966 3
1967 12
1968 8
1969 8
1970 9
1971 13
1972 17
1973 7
1974 14
1975 16
1976 22
1977 10
1978 15
1979 20
1980 9
1981 11
1982 19
1983 19
1984 23
1985 23
1986 10
1987 16
1988 17
1989 22
1990 18
1991 18
1992 23
1993 12
1994 9
1995 11
1996 14
1997 14
1998 15
1999 7
2000 10
2001 8
2002 58
2003 8
2004 8
2005 8
2006 13
2007 11
2008 24
2009 24
2010 23
2011 16
2012 19
2013 14
2014 15
2015 12
2016 10
2017 10
2018 12
2019 10
2020 13
2021 14
2022 10
2023 10
2024 5
2025 11
2026 8
Total 891
Download as CSV

A. D. Smith publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where A. D. Smith sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 86 bars. Horizontal axis: publications, 101–120 to 1,796+. Vertical axis: number of scientists, 0 to 922. Most scientists, 922, have 341–360 publications. The last bar groups every scientist with 1,796 publications or more. The highlighted bar, 541–560 publications, is where this scientist sits. 101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101–120 publications 1,796+

This scientist: 558 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

View publications distribution as a table
Number of Medicine scientists by publication count, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
Publications Scientists This scientist
101–120 5
121–140 26
141–160 73
161–180 155
181–200 230
201–220 363
221–240 487
241–260 545
261–280 722
281–300 768
301–320 834
321–340 895
341–360 922
361–380 838
381–400 861
401–420 918
421–440 806
441–460 771
461–480 751
481–500 713
501–520 617
521–540 610
541–560 537 558
561–580 504
581–600 509
601–620 396
621–640 386
641–660 371
661–680 340
681–700 336
701–720 307
721–740 259
741–760 230
761–780 228
781–800 217
801–820 204
821–840 186
841–860 177
861–880 155
881–900 139
901–920 145
921–940 116
941–960 133
961–980 91
981–1,000 96
1,001–1,020 77
1,021–1,040 70
1,041–1,060 63
1,061–1,080 77
1,081–1,100 49
1,101–1,120 54
1,121–1,140 49
1,141–1,160 51
1,161–1,180 35
1,181–1,200 39
1,201–1,220 26
1,221–1,240 37
1,241–1,260 36
1,261–1,280 27
1,281–1,300 32
1,301–1,320 28
1,321–1,340 17
1,341–1,360 30
1,361–1,380 28
1,381–1,400 17
1,401–1,420 21
1,421–1,440 15
1,441–1,460 12
1,461–1,480 12
1,481–1,500 18
1,501–1,520 14
1,521–1,540 17
1,541–1,560 15
1,561–1,580 6
1,581–1,600 2
1,601–1,620 12
1,621–1,640 11
1,641–1,660 8
1,661–1,680 5
1,681–1,700 5
1,701–1,720 10
1,721–1,740 12
1,741–1,760 14
1,761–1,780 6
1,781–1,795 5
1,796+ 100
Download as CSV

A. D. Smith D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where A. D. Smith sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 75 bars. Horizontal axis: D-Index, 70–71 to 217+. Vertical axis: number of scientists, 0 to 1,027. Most scientists, 1,027, have 82–83 D-Index. The last bar groups every scientist with 217 D-Index or more. The highlighted bar, 126–127 D-Index, is where this scientist sits. 70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70–71 D-Index 217+

This scientist: 126 D-Index — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

View D-Index distribution as a table
Number of Medicine scientists by D-index, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
D-Index Scientists This scientist
70–71 226
72–73 391
74–75 574
76–77 730
78–79 891
80–81 972
82–83 1,027
84–85 1,003
86–87 960
88–89 970
90–91 922
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630
104–105 513
106–107 541
108–109 445
110–111 429
112–113 399
114–115 393
116–117 318
118–119 302
120–121 287
122–123 255
124–125 256
126–127 252 126
128–129 230
130–131 179
132–133 168
134–135 163
136–137 159
138–139 134
140–141 134
142–143 118
144–145 109
146–147 106
148–149 74
150–151 79
152–153 80
154–155 87
156–157 57
158–159 74
160–161 69
162–163 60
164–165 53
166–167 39
168–169 42
170–171 32
172–173 39
174–175 40
176–177 28
178–179 19
180–181 23
182–183 31
184–185 18
186–187 20
188–189 22
190–191 13
192–193 21
194–195 12
196–197 12
198–199 14
200–201 15
202–203 13
204–205 10
206–207 8
208–209 4
210–211 12
212–213 11
214–215 10
216 4
217+ 98
Download as CSV

Overview

A. D. Smith is affiliated with the University of Oxford in the United Kingdom and specializes in medical research with a focus on multiple subfields. Their work includes contributions to rheumatology, psychiatry and mental health, physiology, molecular biology, and neurology. Over the course of their career, Smith has concentrated primarily on medicine, with a publication record spanning various related disciplines.

Their research covers several main topics, including:

  • Folate and B Vitamins Research
  • Dementia and Cognitive Impairment Research
  • Diet and metabolism studies
  • Fluoride Effects and Removal
  • Alcoholism and Thiamine Deficiency
  • Renal cell carcinoma treatment
  • Fatty Acid Research and Health

Smith has published extensively in journals such as:

  • Annals of Oncology
  • Journal of Alzheimer's Disease
  • Alzheimer's & Dementia
  • The Journal of Nutrition Health & Aging
  • Alzheimer's & Dementia Translational Research & Clinical Interventions

Among recent notable papers authored or co-authored by Smith are:

  • "Homocysteine - from disease biomarker to disease prevention," 2021, Journal of Internal Medicine
  • "Expert Opinion on Benefits of Long-Chain Omega-3 Fatty Acids (DHA and EPA) in Aging and Clinical Nutrition," 2020, Nutrients
  • "The importance of vitamin B12 for individuals choosing plant-based diets," 2022, European Journal of Nutrition
  • "Depression, Depression Treatments, and Risk of Incident Dementia: A Prospective Cohort Study of 354,313 Participants," 2022, Biological Psychiatry
  • "Modifiable risk factors for incident dementia and cognitive impairment: An umbrella review of evidence," 2022, Journal of Affective Disorders

Frequent co-authors of Smith include:

  • Helga Refsum
  • Yue-Ting Deng
  • Ya-Ru Zhang
  • Jianfeng Feng
  • Ya-Nan Ou

The body of work reflects a strong emphasis on nutritional biochemistry, cognitive decline, and complex disease mechanisms, particularly regarding folate and B vitamins as well as neurological health issues such as dementia.

Best Publications

  • Genome-wide association study identifies variants at CLU and PICALM associated with Alzheimer's disease

    Denise Harold;Richard Abraham;Paul Hollingworth;Rebecca Sims

  • Erratum: Genome-wide association study identifies variants at CLU and PICALM associated with Alzheimer's disease (Nature Genetics (2009) 41 (1088-1093))

    D Harold;R Abraham;P Hollingworth;R Sims

  • Common variants at ABCA7, MS4A6A/MS4A4E, EPHA1, CD33 and CD2AP are associated with Alzheimer's disease.

    Paul Hollingworth;Denise Harold;Rebecca Sims;Amy Gerrish

  • Folate, Vitamin B12, and Serum Total Homocysteine Levels in Confirmed Alzheimer Disease

    R Clarke;A D Smith;K A Jobst;H Refsum

  • Facts and Recommendations about Total Homocysteine Determinations: An Expert Opinion

    Helga Refsum;A. David Smith;Per M. Ueland;Ebba Nexo

  • The neuropsychology of schizophrenia.

    J. A. Gray;J. Feldon;J. N. P. Rawlins;D. R. Hemsley

  • Tyrosine hydroxylase-immunoreactive boutons in synaptic contact with identified striatonigral neurons, with particular reference to dendritic spines

    T.F. Freund;J.F. Powell;A.D. Smith

  • Homocysteine-lowering by B vitamins slows the rate of accelerated brain atrophy in mild cognitive impairment: a randomized controlled trial.

    A. David Smith;Stephen M. Smith;Celeste A. de Jager;Philippa Whitbread

  • Genetic evidence implicates the immune system and cholesterol metabolism in the aetiology of Alzheimer's disease.

    Lesley Jones;Peter A. Holmans;Marian L. Hamshere;Denise Harold

  • An arcuato-paraventricular and -dorsomedial hypothalamic neuropeptide Y-containing system which lacks noradrenaline in the rat.

    F.L. Bai;M. Yamano;Y. Shiotani;P.C. Emson

  • Different populations of GABAergic neurons in the visual cortex and hippocampus of cat contain somatostatin- or cholecystokinin- immunoreactive material

    Somogyi P;Hodgson Aj;Smith Ad;Nunzi Mg

  • Secretion of a Chromaffin Granule Protein, Chromogranin, from the Adrenal Gland after Splanchnic Stimulation

    H. Blaschko;H. Blaschko;R. S. Comline;R. S. Comline;F. H. Schneider;F. H. Schneider;Marian Silver;Marian Silver

  • Immunocytochemical localization of D1 and D2 dopamine receptors in the basal ganglia of the rat: Light and electron microscopy

    K.K.L. Yung;J.P. Bolam;A.D. Smith;S.M. Hersch

  • Characterization of cholinergic neurons in the rat neostriatum. A combination of choline acetyltransferase immunocytochemistry, Golgi-impregnation and electron microscopy.

    J.P. Bolam;B.H. Wainer;A.D. Smith

  • The Hordaland Homocysteine Study: A Community-Based Study of Homocysteine, Its Determinants, and Associations with Disease

    Helga Refsum;Helga Refsum;Helga Refsum;Eha Nurk;A. David Smith;Per M. Ueland

  • Monosynaptic cortical input and local axon collaterals of identified striatonigral neurons. A light and electron microscopic study using the golgi‐peroxidase transport‐degeneration procedure

    P. Somogyi;P. Somogyi;J. P. Bolam;J. P. Bolam;A. D. Smith;A. D. Smith

  • Preventing Alzheimer’s disease-related gray matter atrophy by B-vitamin treatment

    Gwenaëlle Douaud;Gwenaëlle Douaud;Helga Refsum;Helga Refsum;Helga Refsum;Celeste A. de Jager;Robin Jacoby

  • Cerebrovascular disease and threshold for dementia in the early stages of Alzheimer's disease

    Margaret M Esiri;Zsuzsanna Nagy;Maria Z Smith;Lin Barnetson

  • Cognitive and clinical outcomes of homocysteine-lowering B-vitamin treatment in mild cognitive impairment: a randomized controlled trial.

    Celeste A. de Jager;Abderrahim Oulhaj;Robin Jacoby;Helga Refsum;Helga Refsum

  • Genome-wide association study identifies variants at CLU and PICALM associated with Alzheimertextquotesingles disease

    Denise Harold;Richard Abraham;Paul Hollingworth;Rebecca Sims

Frequent Co-Authors

J. P. Bolam
J. P. Bolam University of Oxford
Margaret M. Esiri
Margaret M. Esiri University of Oxford
Peter Somogyi
Peter Somogyi University of Oxford
Helga Refsum
Helga Refsum University of Oslo
John Powell
John Powell King's College London
Gordon K. Wilcock
Gordon K. Wilcock University of Oxford
Hans Winkler
Hans Winkler University of Innsbruck
Kevin Morgan
Kevin Morgan University of Nottingham
Yoshiyuki Kubota
Yoshiyuki Kubota The Graduate University for Advanced Studies, SOKENDAI
Joram Feldon
Joram Feldon ETH Zurich

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring alternate routes in the medical and healthcare field? There are several flexible pathways that open doors to dynamic and rewarding careers—even outside traditional medical school. A health care administration degree online can prepare you for leadership roles in hospitals, clinics, or health organizations, blending business skills with healthcare knowledge.

For advanced positions, earning the cheapest online master degree in healthcare administration helps you develop expertise in policy, finance, and management, often at a lower cost and with flexible scheduling.

Nursing professionals seeking career advancement can consider the cheapest bsn to dnp programs, which offer an affordable path to a Doctor of Nursing Practice degree online, helping nurses move into high-level practice or administration roles.

Those interested in pharmacy can now access accredited online pharmacy school programs, ideal for students who want to balance studies with other commitments.

With these online degree options, students gain the skills needed for in-demand roles in healthcare, often with lower tuition and greater flexibility than traditional programs.

Best Scientists Citing A. D. Smith

Trending Scientists

Recently Published Articles