World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
89
Citations
31692
World Ranking
12612
National Ranking
519

Jan M. Friedman 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 Jan M. Friedman sits on this spectrum.

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 publications 1,796+

This scientist: 331 publications — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Jan M. Friedman 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 Jan M. Friedman sits on this spectrum.

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 D-Index 217+

This scientist: 89 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

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

Overview

Jan M. Friedman is affiliated with the University of British Columbia in Canada and has contributed extensively to the fields of biochemistry, genetics, and molecular biology, with a focus also on medicine. Their work spans several subfields including genetics, molecular biology, neurology, public health, environmental and occupational health, as well as pediatrics, perinatology, and child health.

The scientist's research primarily addresses genomics and rare diseases, with notable topics encompassing BRCA gene mutations in cancer, genomic variations and chromosomal abnormalities, neurofibromatosis and schwannoma cases, genetic neurodegenerative diseases, ethics in clinical research, and meningioma and schwannoma management.

Among recent papers authored or coauthored by Jan M. Friedman are the following:

  • Revised diagnostic criteria for neurofibromatosis type 1 and Legius syndrome: an international consensus recommendation, 2021, Genetics in Medicine
  • Updated diagnostic criteria and nomenclature for neurofibromatosis type 2 and schwannomatosis: An international consensus recommendation, 2022, Genetics in Medicine
  • The composition and capacity of the clinical genetics workforce in high-income countries: a scoping review, 2020, Genetics in Medicine
  • Straglr: discovering and genotyping tandem repeat expansions using whole genome long-read sequences, 2021, Genome biology
  • Sequence composition changes in short tandem repeats: heterogeneity, detection, mechanisms and clinical implications, 2024, Nature Reviews Genetics

Frequent collaborators in their research include:

  • Alison M. Elliott
  • Larry D. Lynd
  • Shelin Adam
  • Nick Dragojlovic
  • Patricia Birch

Jan M. Friedman has published prolifically in several scientific journals, with the most frequent venues being:

  • Genetics in Medicine
  • bioRxiv (Cold Spring Harbor Laboratory)
  • European Journal of Human Genetics
  • Birth Defects Research
  • Genome Medicine

Best Publications

  • Consensus Statement : Chromosomal Microarray Is a First-Tier Clinical Diagnostic Test for Individuals with Developmental Disabilities or Congenital Anomalies

    David T. Miller;Margaret P. Adam;Margaret P. Adam;Swaroop Aradhya;Leslie G. Biesecker

  • Structural variation of chromosomes in autism spectrum disorder.

    Christian R. Marshall;Abdul Noor;John B. Vincent;Anath C. Lionel

  • A Reevaluation of Risk of In Utero Exposure to Lithium

    L S Cohen;J M Friedman;J W Jefferson;E M Johnson

  • Mortality in neurofibromatosis 1: an analysis using U.S. death certificates.

    Sonja A. Rasmussen;Quanhe Yang;J.M. Friedman

  • Use of Selective Serotonin-Reuptake Inhibitors in Pregnancy and the Risk of Birth Defects

    Sura Alwan;Jennita Reefhuis;Sonja A Rasmussen;Richard S Olney

  • NF1 Gene and Neurofibromatosis 1

    Sonja A. Rasmussen;J. M. Friedman

  • Massively Parallel Sequencing: The Next Big Thing in Genetic Medicine

    Tracy Tucker;Marco Marra;Marco Marra;Jan M. Friedman;Jan M. Friedman

  • Evidence for multi‐site closure of the neural tube in humans

    Margot I. Van Allen;Dagmar K. Kalousek;Gerold F. Chernoff;Diana Juriloff

  • Population-based analyses of mortality in trisomy 13 and trisomy 18.

    Sonja A Rasmussen;Lee-Yang C Wong;Quanhe Yang;Kristin M May

  • Revised diagnostic criteria for neurofibromatosis type 1 and Legius syndrome: an international consensus recommendation.

    E Legius;L Messiaen;P Wolkenstein;P Pancza

  • Cardiovascular disease in neurofibromatosis 1: report of the NF1 Cardiovascular Task Force.

    J M Friedman;Jack Arbiser;Jonathan A Epstein;David H Gutmann

  • Diagnostic criteria for schwannomatosis

    M. MacCollin;E. A. Chiocca;D. G. Evans;J. M. Friedman

  • BRCA1 and BRCA2 Mutation Analysis of 208 Ashkenazi Jewish Women with Ovarian Cancer

    Roxana Moslehi;Roxana Moslehi;William Chu;Beth Karlan;David Fishman

  • Maternal treatment with opioid analgesics and risk for birth defects

    Cheryl S. Broussard;Sonja A. Rasmussen;Jennita Reefhuis;Jan M. Friedman

  • Evolving knowledge of the teratogenicity of medications in human pregnancy

    Margaret P. Adam;Janine E. Polifka;J.M. Friedman

  • Oligonucleotide microarray analysis of genomic imbalance in children with mental retardation.

    J. M. Friedman;Ágnes Baross;Allen D. Delaney;Adrian Ally

  • Association between benign and malignant peripheral nerve sheath tumors in NF1.

    T. Tucker;P. Wolkenstein;J. Revuz;J. Zeller

  • Exome Sequencing and the Management of Neurometabolic Disorders

    Maja Tarailo-Graovac;Maja Tarailo-Graovac;Casper Shyr;Colin J. Ross;Gabriella A. Horvath;Gabriella A. Horvath

  • Insights into the pathogenesis of neurofibromatosis 1 vasculopathy.

    SJ Hamilton;JM Friedman

  • Use of selective serotonin-reuptake inhibitors in pregnancy and the risk of birth defects

    Sura Alwan;Jennita Reefhuis;Sonja A. Rasmussen;Richard S. Olney

Frequent Co-Authors

Marco A. Marra
Marco A. Marra University of British Columbia
Sylvie Langlois
Sylvie Langlois University of British Columbia
Harry Joe
Harry Joe University of British Columbia
Alison M. Elliott
Alison M. Elliott London School of Hygiene & Tropical Medicine
D. Gareth Evans
D. Gareth Evans University of Manchester
Sonja A. Rasmussen
Sonja A. Rasmussen Johns Hopkins University School of Medicine
Bartha Maria Knoppers
Bartha Maria Knoppers McGill University Health Centre
Jacques L. Michaud
Jacques L. Michaud University of Montreal
David H. Viskochil
David H. Viskochil University of Utah
Bridget A. Fernandez
Bridget A. Fernandez Memorial University of Newfoundland

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