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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Medicine 86 13918 451 284 36005

Marc Lémann publications per year

The chart shows the history of publications by Marc Lémann between 1987 and 2019, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Marc Lémann published across 33 years, from 1987 to 2019, averaging 8.9 papers a year. Output peaked at 43 publications in 2009. 2 of the 294 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1987 to 2019. Vertical axis: number of publications, 0 to 43. Peak 43 publications in 2009. 1987: 1 publication 1988: 2 publications 1989: 1 publication 1990: 3 publications 1991: 4 publications 1992: 3 publications 1993: 4 publications 1994: 6 publications 1995: 6 publications 1996: 8 publications 1997: 6 publications 1998: 13 publications 1999: 10 publications 2000: 6 publications 2001: 4 publications 2002: 10 publications 2003: 10 publications 2004: 14 publications 2005: 10 publications 2006: 13 publications 2007: 16 publications 2008: 30 publications 2009: 43 publications 2010: 23 publications 2011: 30 publications 2012: 8 publications 2013: 5 publications 2014: 1 publication 2015: 0 publications 2016: 0 publications 2017: 2 publications 2018: 0 publications 2019: 2 publications
1987 2019

294 publications in total across all disciplines

View publications per year as a table
Marc Lémann: publications per year, 1987 to 2019
Year Publications
1987 1
1988 2
1989 1
1990 3
1991 4
1992 3
1993 4
1994 6
1995 6
1996 8
1997 6
1998 13
1999 10
2000 6
2001 4
2002 10
2003 10
2004 14
2005 10
2006 13
2007 16
2008 30
2009 43
2010 23
2011 30
2012 8
2013 5
2014 1
2015 0
2016 0
2017 2
2018 0
2019 2
Total 294
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Marc Lémann 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 Marc Lémann 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, 281–300 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: 284 publications — 14th percentile

14% 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
281–300 768 284
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
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
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Marc Lémann 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 Marc Lémann 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, 86–87 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: 86 D-Index — 31st percentile

31% 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 86
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
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
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Overview

Marc Lémann was affiliated with Université Paris Cité in France during their academic career. Their work was situated within the context of this institution, contributing to its research environment.

There are no recorded recent publications or papers explicitly associated with Marc Lémann in the available data. Similarly, there is no available information on frequent co-authors, main fields of study, subfields, or specific topics covered in their research.

Details regarding their academic output at major publication venues or book publications are not provided, indicating limited public bibliographic records or gaps in the accessible metadata concerning their professional contributions.

No awards or recognitions have been documented for Marc Lémann in the provided data, and no other professional distinctions are noted.

Best Publications

  • Genome-wide meta-analysis increases to 71 the number of confirmed Crohn's disease susceptibility loci

    Andre Franke;Dermot P B McGovern;Jeffrey C. Barrett;Kai Wang

  • The second European evidence-based Consensus on the diagnosis and management of Crohn's disease: Current management

    A. Dignass;G. Van Assche;J.O. Lindsay;M. Lémann

  • Meta-analysis identifies 29 additional ulcerative colitis risk loci, increasing the number of confirmed associations to 47.

    Carl A. Anderson;Gabrielle Boucher;Charlie W. Lees;Andre Franke

  • A review of activity indices and efficacy end points for clinical trials of medical therapy in adults with ulcerative colitis.

    Geert D’Haens;William J. Sandborn;Brian G. Feagan;Karel Geboes

  • Lymphoproliferative disorders in patients receiving thiopurines for inflammatory bowel disease: a prospective observational cohort study

    Laurent Beaugerie;Nicole Brousse;Anne Marie Bouvier;Jean Frédéric Colombel

  • European evidence based consensus on the diagnosis and management of Crohn’s disease: current management

    Spl Travis;EF Stange;Marc Lémann;T Oresland

  • Risk of tuberculosis is higher with anti–tumor necrosis factor monoclonal antibody therapy than with soluble tumor necrosis factor receptor therapy: The three‐year prospective french research axed on tolerance of biotherapies registry

    Florence Tubach;Dominique Salmon;Philippe Ravaud;Yannick Allanore

  • European evidence-based Consensus on the management of ulcerative colitis: Current management.

    S. P. L Travis;E. F Stange;M Lemann;T Oresland

  • Maintenance of Remission Among Patients With Crohn's Disease on Antimetabolite Therapy After Infliximab Therapy Is Stopped

    Edouard Louis;Jean–Yves Mary;Gwenola Vernier–Massouille;Jean–Charles Grimaud

  • Development of the Crohn's disease digestive damage score, the Lémann score†‡§

    Benjamin Pariente;Jacques Cosnes;Silvio Danese;William J. Sandborn

  • Ciclosporin versus infliximab in patients with severe ulcerative colitis refractory to intravenous steroids: a parallel, open-label randomised controlled trial

    David Laharie;Arnaud Bourreille;Julien Branche;Matthieu Allez

  • Developing an instrument to assess the endoscopic severity of ulcerative colitis: the Ulcerative Colitis Endoscopic Index of Severity (UCEIS)

    Simon P L Travis;Dan Schnell;Piotr Krzeski;Maria T Abreu

  • Long-term follow-up of patients with Crohn's disease treated with azathioprine or 6-mercaptopurine

    Y. Bouhnik;G. Scemama;R. Taï;C. Matuchansky

  • Clinical implications of mucosal healing for the management of IBD

    Guillaume Pineton de Chambrun;Laurent Peyrin-Biroulet;Marc Lémann;Jean-Frédéric Colombel

  • Increased risk for nonmelanoma skin cancers in patients who receive thiopurines for inflammatory bowel disease

    Laurent Peyrin–Biroulet;Kiarash Khosrotehrani;Fabrice Carrat;Anne–Marie Bouvier

  • The London Position Statement of the World Congress of Gastroenterology on Biological Therapy for IBD With the European Crohn's and Colitis Organization: When to Start, When to Stop, Which Drug to Choose, and How to Predict Response

    Geert R. D'Haens;Remo Panaccione;Peter D.R. Higgins;Severine Vermeire

  • Ineffectiveness of Lactobacillus johnsonii LA1 for prophylaxis of postoperative recurrence in Crohn’s disease: a randomised, double blind, placebo controlled GETAID trial

    P. Marteau;M. Lémann;P. Seksik;D. Laharie

  • Infliximab plus azathioprine for steroid-dependent Crohn's disease patients: a randomized placebo-controlled trial.

    Marc LÉmann;Jean–Yves Mary;Bernard Duclos;Michel Veyrac

  • A randomized, double-blind, controlled withdrawal trial in Crohn's disease patients in long-term remission on azathioprine.

    Marc Lémann;Jean-Yves Mary;Jean-Frédéric Colombel;Bernard Duclos

  • Abnormal perception of visceral pain in response to gastric distension in chronic idiopathic dyspepsia. The irritable stomach syndrome.

    M. Lemann;J. P. Dederding;B. Flourie;C. Franchisseur

Frequent Co-Authors

Jean-Frederic Colombel
Jean-Frederic Colombel Icahn School of Medicine at Mount Sinai
Matthieu Allez
Matthieu Allez Université Paris Cité
Yoram Bouhnik
Yoram Bouhnik Beaujon Hospital
Xavier Hébuterne
Xavier Hébuterne Université Côte d'Azur
Franck Carbonnel
Franck Carbonnel University of Paris-Saclay
Jean-Pierre Hugot
Jean-Pierre Hugot Université Paris Cité
Laurent Peyrin-Biroulet
Laurent Peyrin-Biroulet University of Lorraine
Geert R. D'Haens
Geert R. D'Haens University of Amsterdam

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