World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
103
Citations
36776
World Ranking
7405
National Ranking
3872

Ralph V. Clayman 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 Ralph V. Clayman 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: 611 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: 815 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Ralph V. Clayman 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 Ralph V. Clayman 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: 400 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: 103 D-Index — 65th percentile

65% of scientists in this discipline score the same or lower.

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

Overview

Ralph V. Clayman is affiliated with the University of California, Irvine in the United States. Their work primarily falls within the field of Medicine, with significant contributions in several subfields including Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health, Surgery, Urology, and Obstetrics and Gynecology.

The scientist has a notable focus on topics related to Kidney Stones and Urolithiasis Treatments, Pediatric Urology and Nephrology Studies, Ureteral procedures and complications, Urological Disorders and Treatments, Surgical Simulation and Training, Renal cell carcinoma treatment, and Bladder and Urothelial Cancer Treatments.

Ralph V. Clayman's publication record includes recent papers such as:

  • Technique for Laparoscopic Running Urethrovesical Anastomosis: The Single Knot Method, 2020, Urology
  • Qualitative Review of Clinical Guidelines for Medical and Surgical Management of Urolithiasis: Consensus and Controversy 2020, 2020, The Journal of Urology
  • Characterization of intracalyceal pressure during ureteroscopy, 2020, World Journal of Urology
  • Caveat Emptor: The Heat Is "ON"-An In Vivo Evaluation of the Thulium Fiber Laser and Temperature Changes in the Porcine Kidney During Dusting and Fragmentation Modes, 2021, Journal of Endourology
  • Determining the Safety Threshold for the Passage of a Ureteral Access Sheath in Clinical Practice Using a Purpose-Built Force Sensor, 2021, The Journal of Urology

The frequent co-authors collaborating with Ralph V. Clayman include Jaime Landman, Roshan M. Patel, Pengbo Jiang, Zachary E. Tano, and Sohrab N. Ali. These partnerships reflect a sustained research network contributing to their body of work.

The scientist's publications appear predominantly in journals such as The Journal of Urology, Journal of Endourology, Urologic Oncology Seminars and Original Investigations, Urology, and Journal of Endourology Case Reports, with the highest number of publications in The Journal of Urology and Journal of Endourology.

Best Publications

  • Laparoscopic Nephrectomy: Initial Case Report

    Ralph V. Clayman;Louis R. Kavoussi;Nathaniel J. Soper;Stephen M. Dierks

  • Successful Transfer of Open Surgical Skills to a Laparoscopic Environment Using a Robotic Interface: Initial Experience With Laparoscopic Radical Prostatectomy

    Thomas E. Ahlering;Douglas Skarecky;David Soobin Lee;Ralph V. Clayman

  • LAPAROSCOPIC VERSUS OPEN RADICAL NEPHRECTOMY: A 9-YEAR EXPERIENCE

    Matthew D. Dunn;Andrew J. Portis;Arieh L. Shalhav;Abdelhamid M. Elbahnasy

  • Technique for laparoscopic running urethrovesical anastomosis:the single knot method.

    Roland F Van Velthoven;Thomas E Ahlering;Alexandre Peltier;Douglas W Skarecky

  • Laparoscopic partial nephrectomy: initial case report for benign disease.

    Howard N. Winfield;James F. Donovan;Andre S. Godet;Ralph V. Clayman

  • Laparoscopic nephroureterectomy: initial clinical case report.

    Ralph V. Clayman;Louis R. Kavoussi;Robert S. Figenshau;Paramjit S. Chandhoke

  • Complications of Laparoscopic Nephrectomy in 185 Patients: A Multi-Institutional Review

    Inderbir S. Gill;Louis R. Kavoussi;Ralph V. Clayman;Richard Ehrlich

  • LOWER CALICEAL STONE CLEARANCE AFTER SHOCK WAVE LITHOTRIPSY OR URETEROSCOPY: THE IMPACT OF LOWER POLE RADIOGRAPHIC ANATOMY

    Abdelhamid M. Elbahnasy;Arieh L. Shalhav;David M. Hoenig;Osama M. Elashry

  • LONG-TERM FOLLOWUP AFTER LAPAROSCOPIC RADICAL NEPHRECTOMY

    Andrew J. Portis;Yan Yan;Jaime Landman;Cathy Chen

  • Evaluation of a Vessel Sealing System, Bipolar Electrosurgery, Harmonic Scalpel, Titanium Clips, Endoscopic Gastrointestinal Anastomosis Vascular Staples and Sutures for Arterial and Venous Ligation in a Porcine Model

    Jaime Landman;Kurt Kerbl;Jamil Rehman;Cassio Andreoni

  • Laparoscopic nephrectomy for renal cell cancer: evaluation of efficacy and safety: a multicenter experience

    Jeffrey A Cadeddu;Yoshinari Ono;Ralph V Clayman;Peter H Barrett

  • Characterization of intrapelvic pressure during ureteropyeloscopy with ureteral access sheaths.

    Jamil Rehman;Manoj Monga;Jaime Landman;David I Lee

  • Laparoscopic Radical Nephrectomy for Renal Tumor: The Washington University Experience

    Elspeth M. McDougall;Ralph V. Clayman;Osama M. Elashry

  • Complications of laparoscopic pelvic lymph node dissection.

    Louis R. Kavoussi;Ernest Sosa;Paramjit Chandhoke;Gerald Chodak

  • Prospective randomized trial comparing shock wave lithotripsy and ureteroscopy for management of distal ureteral calculi

    Margaret Pearle;Robert Nadler;Eduardo Bercowsky;Cathy Chen

  • The effect of prolonged pneumoperitoneum on renal function in an animal model

    McDougall Em;Monk Tg;Wolf Js;Hicks M

  • Laparoscopic nephroureterectomy for upper tract transitional cell cancer: the Washington University experience.

    Elspeth M. McDougall;Ralph V. Clayman;Osama Elashry

  • Nomenclature of natural orifice translumenal endoscopic surgery (NOTES) and laparoendoscopic single-site surgery (LESS) procedures in urology.

    Geoffrey Box;Timothy Averch;Jeffrey A Cadeddu;Edward Cherullo

  • Endopyelotomy: comparison of ureteroscopic retrograde and antegrade percutaneous techniques.

    Irit Meretyk;Shimon Meretyk;Ralph V. Clayman

  • Training, credentialing, proctoring and medicolegal risks of robotic urological surgery: recommendations of the society of urologic robotic surgeons.

    Kevin C. Zorn;Gagan Gautam;Arieh L. Shalhav;Ralph V. Clayman

Frequent Co-Authors

Elspeth M. McDougall
Elspeth M. McDougall University of British Columbia
Louis R. Kavoussi
Louis R. Kavoussi Northwell Health
J. Stuart Wolf
J. Stuart Wolf The University of Texas at Austin
Peter A. Humphrey
Peter A. Humphrey Yale University
Inderbir S. Gill
Inderbir S. Gill University of Southern California
Kathryn Osann
Kathryn Osann University of California, Irvine
Nathaniel J. Soper
Nathaniel J. Soper Northwestern University
Gerald L. Andriole
Gerald L. Andriole Washington University in St. Louis
Jeffrey A. Cadeddu
Jeffrey A. Cadeddu The University of Texas Southwestern Medical Center
Glenn M. Preminger
Glenn M. Preminger Duke University

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