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Subfield · Gastroenterology

Top Gastroenterology Researchers

Michael Camilleri ranks first, followed by Jan F. Tack and Peter J. Kahrilas, out of 581,714 ranked researchers.

Field rank: how many more of the researcher's articles, reviews and conference papers in this field reached the world top 10% for their subfield and year than the 10% expected of anyone's. A paper in the top 10% adds 0.9 and any other takes 0.1 away, however highly cited, so many strong papers in the field outrank one famous paper, a long record of ordinary papers does not climb, and work in other fields does not count. A paper in two subfields counts half in each. A researcher with fewer papers in the Nature Index's selective journals than expected has the count lowered by the square root of that journal factor. Floor: 15 works, an institution the snapshot can resolve, and an article, review or conference paper in this field.

Gastroenterology
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The ranking

  1. 1 Michael Camilleri United States · #28,918 worldwide overall 114.4 of 364 papers here in the top 10%
  2. 2 Jan F. Tack Belgium · #145,829 worldwide overall 115.9 of 527 papers here in the top 10%
  3. 3 Peter J. Kahrilas United States · #17,763 worldwide overall 72.1 of 214 papers here in the top 10%
  4. 4 Alexander Charles Ford United Kingdom · #13,435 worldwide overall 68.7 of 183 papers here in the top 10%
  5. 5 John Erik Pandolfino United States · #36,932 worldwide overall 73.1 of 236 papers here in the top 10%
  6. 6 Magnus Simrén Sweden · #59,505 worldwide overall 62.0 of 208 papers here in the top 10%
  7. 7 Nicholas Joseph Talley Australia · #163,597 worldwide overall 69.6 of 299 papers here in the top 10%
  8. 8 Alan R. Zinsmeister United States · #28,715 worldwide overall 55.9 of 173 papers here in the top 10%
  9. 9 Marc Alexander Benninga Netherlands · #74,027 worldwide overall 57.2 of 214 papers here in the top 10%
  10. 10 Paul Moayyedi Canada · #35,223 worldwide overall 48.7 of 155 papers here in the top 10%
  11. 11 Joseph A. Murray United States · #93,872 worldwide overall 55.7 of 230 papers here in the top 10%
  12. 12 Emeran A. Mayer United States · #39,471 worldwide overall 45.7 of 147 papers here in the top 10%
  13. 13 Eamonn M.M. Quigley United States · #67,159 worldwide overall 51.1 of 184 papers here in the top 10%
  14. 14 Edoardo Vincenzo Savarino Italy · #223,283 worldwide overall 68.2 of 247 papers here in the top 10%
  15. 15 Albert Jan Bredenoord Netherlands · #28,770 worldwide overall 42.1 of 127 papers here in the top 10%
  16. 16 Jean‐Yves Blay France · #26,546 worldwide overall 40.5 of 116 papers here in the top 10%
  17. 17 Michael Charles Heinrich United States · #20,199 worldwide overall 36.3 of 76 papers here in the top 10%
  18. 18 Ludvig Magne Sollid Norway · #33,489 worldwide overall 38.7 of 103 papers here in the top 10%
  19. 19 Chandra Prakash Gyawali United States · #75,376 worldwide overall 39.7 of 141 papers here in the top 10%
  20. 20 Giovanni Barbara Italy · #67,051 worldwide overall 37.4 of 126 papers here in the top 10%
  21. 21 Henry P. Parkman United States · #332,683 worldwide overall 52.7 of 201 papers here in the top 10%
  22. 22 Douglas A. Drossman United States · #63,528 worldwide overall 37.6 of 133 papers here in the top 10%
  23. 23 John F. Cryan Ireland · #7,253 worldwide overall 29.2 of 50 papers here in the top 10%
  24. 24 George D. Demetri United States · #4,528 worldwide overall 29.2 of 52 papers here in the top 10%
  25. 25 William D. Chey United States · #142,465 worldwide overall 44.8 of 211 papers here in the top 10%
  26. 26 Tom R. DeMeester United States · #85,586 worldwide overall 35.7 of 125 papers here in the top 10%
  27. 27 Robert E. Spiller United Kingdom · #122,671 worldwide overall 35.2 of 127 papers here in the top 10%
  28. 28 Anthony J Lembo United States · #103,220 worldwide overall 36.5 of 141 papers here in the top 10%
  29. 29 Lin Chang United States · #64,640 worldwide overall 33.6 of 113 papers here in the top 10%
  30. 30 William E. Whitehead United States · #110,988 worldwide overall 36.8 of 148 papers here in the top 10%
  31. 31 Gianrico Farrugia United States · #204,387 worldwide overall 33.9 of 120 papers here in the top 10%
  32. 32 Michael Fredrick Vaezi United States · #93,227 worldwide overall 35.4 of 136 papers here in the top 10%
  33. 33 Joel E. Richter United States · #169,469 worldwide overall 41.0 of 154 papers here in the top 10%
  34. 34 Guy E. Boeckxstaens Belgium · #95,902 worldwide overall 35.6 of 145 papers here in the top 10%
  35. 35 William Lee Hasler United States · #93,358 worldwide overall 30.9 of 98 papers here in the top 10%
  36. 36 Vincenzo Stanghellini Italy · #147,512 worldwide overall 34.5 of 138 papers here in the top 10%
  37. 37 Mark R. Fox Switzerland · #73,601 worldwide overall 28.9 of 81 papers here in the top 10%
  38. 38 Daniel A. Sifrim United Kingdom · #218,229 worldwide overall 36.9 of 168 papers here in the top 10%
  39. 39 Timothy G. Dinan Ireland · #21,592 worldwide overall 25.2 of 50 papers here in the top 10%
  40. 40 Jonas Filip Ludvigsson Sweden · #30,971 worldwide overall 32.3 of 122 papers here in the top 10%
  41. 41 Ronnie Fass United States · #208,154 worldwide overall 40.9 of 210 papers here in the top 10%
  42. 42 Sabine Roman France · #106,201 worldwide overall 29.4 of 96 papers here in the top 10%
  43. 43 Pankaj Jay Pasricha United States · #188,240 worldwide overall 31.6 of 118 papers here in the top 10%
  44. 44 Paolo Giovanni Casali Italy · #5,637 worldwide overall 24.3 of 49 papers here in the top 10%
  45. 45 André J.P.M. Smout Netherlands · #146,731 worldwide overall 34.9 of 155 papers here in the top 10%
  46. 46 Olafur S. Palsson United States · #129,694 worldwide overall 30.8 of 120 papers here in the top 10%
  47. 47 Michael Bruce Horowitz Australia · #194,476 worldwide overall 29.1 of 103 papers here in the top 10%
  48. 48 Alessio Fasano United States · #48,083 worldwide overall 28.9 of 102 papers here in the top 10%
  49. 49 Richard W. McCallum United States · #594,834 worldwide overall 48.5 of 232 papers here in the top 10%
  50. 50 Michael David Gershon United States · #48,747 worldwide overall 25.5 of 73 papers here in the top 10%
  51. 51 Knut E. A. Lundin Norway · #92,761 worldwide overall 25.0 of 70 papers here in the top 10%
  52. 52 Rena H. Yadlapati United States · #85,655 worldwide overall 27.6 of 89 papers here in the top 10%
  53. 53 Christopher J. Black United Kingdom · #19,749 worldwide overall 22.7 of 44 papers here in the top 10%
  54. 54 Roberto De Giorgio Italy · #283,420 worldwide overall 31.0 of 131 papers here in the top 10%
  55. 55 David Surendran Sanders United Kingdom · #263,976 worldwide overall 32.0 of 142 papers here in the top 10%
  56. 56 Markku Miettinen United States · #8,549 worldwide overall 21.7 of 39 papers here in the top 10%
  57. 57 Nicola de Bortoli Italy · #172,456 worldwide overall 32.6 of 120 papers here in the top 10%
  58. 58 Hashem B. El‐Serag United States · #24,807 worldwide overall 26.0 of 84 papers here in the top 10%
  59. 59 Elena Francisca Verdu Canada · #44,444 worldwide overall 26.2 of 88 papers here in the top 10%
  60. 60 David Yates Graham United States · #45,832 worldwide overall 29.5 of 123 papers here in the top 10%
  61. 61 Cristina R. Antonescu United States · #267 worldwide overall 20.9 of 39 papers here in the top 10%
  62. 62 Adil E. Bharucha United States · #59,600 worldwide overall 26.1 of 91 papers here in the top 10%
  63. 63 Bruce D. Naliboff United States · #102,320 worldwide overall 25.1 of 82 papers here in the top 10%
  64. 64 Christopher L. Corless United States · #33,029 worldwide overall 21.2 of 43 papers here in the top 10%
  65. 65 William J. Snape United States · #165,968 worldwide overall 23.0 of 62 papers here in the top 10%
  66. 66 Alessandro Gronchi Italy · #10,857 worldwide overall 21.5 of 48 papers here in the top 10%
  67. 67 Kenton M. Sanders United States · #228,524 worldwide overall 25.3 of 87 papers here in the top 10%
  68. 68 Hans Törnblom Sweden · #123,549 worldwide overall 27.1 of 108 papers here in the top 10%
  69. 69 Peter James Whorwell United Kingdom · #170,789 worldwide overall 28.8 of 125 papers here in the top 10%
  70. 70 Michael W. Vieth Germany · #139,241 worldwide overall 25.8 of 95 papers here in the top 10%
  71. 71 John Dent Australia · #107,555 worldwide overall 23.5 of 73 papers here in the top 10%
  72. 72 Nicholas J. Talley Australia · #94,923 worldwide overall 23.3 of 68 papers here in the top 10%
  73. 73 Loren Laine United States · #56,365 worldwide overall 26.0 of 99 papers here in the top 10%
  74. 74 Nicholas J. Talley United States · #115,095 worldwide overall 24.4 of 84 papers here in the top 10%
  75. 75 Sean M. Ward United States · #116,080 worldwide overall 21.4 of 57 papers here in the top 10%
  76. 76 Stephen Michael Collins Canada · #215,678 worldwide overall 24.6 of 90 papers here in the top 10%
  77. 77 Piotr Lukasz Rutkowski Poland · #137,884 worldwide overall 22.9 of 75 papers here in the top 10%
  78. 78 Jens Juul Holst Denmark · #39,086 worldwide overall 22.3 of 70 papers here in the top 10%
  79. 79 Murray F. Brennan United States · #9,520 worldwide overall 18.6 of 33 papers here in the top 10%
  80. 80 Ami D. Sperber Israel · #156,373 worldwide overall 21.0 of 59 papers here in the top 10%
  81. 81 John B. Furness Australia · #164,096 worldwide overall 25.7 of 102 papers here in the top 10%
  82. 81 Gerald Holtmann Australia · #371,531 worldwide overall 29.0 of 139 papers here in the top 10%
  83. 83 Dustin A. Carlson United States · #71,091 worldwide overall 23.7 of 87 papers here in the top 10%
  84. 83 Satish S.C. Rao United States · #331,308 worldwide overall 35.8 of 136 papers here in the top 10%
  85. 85 Margaret von Mehren United States · #22,765 worldwide overall 20.5 of 56 papers here in the top 10%
  86. 85 Duane D. Burton United States · #113,175 worldwide overall 22.0 of 70 papers here in the top 10%
  87. 85 Uday C. Ghoshal India · #327,406 worldwide overall 24.3 of 88 papers here in the top 10%
  88. 85 Ciarán P. Kelly United States · #48,017 worldwide overall 23.8 of 89 papers here in the top 10%
  89. 89 Suzanne George United States · #7,594 worldwide overall 19.2 of 44 papers here in the top 10%
  90. 90 Michael A. Kamm United Kingdom · #23,376 worldwide overall 23.2 of 84 papers here in the top 10%
  91. 91 Přemysl Berčík Canada · #65,244 worldwide overall 20.2 of 55 papers here in the top 10%
  92. 92 Kevin Whelan United Kingdom · #82,639 worldwide overall 20.1 of 56 papers here in the top 10%
  93. 93 Lesley Anne Houghton United Kingdom · #68,631 worldwide overall 21.4 of 70 papers here in the top 10%
  94. 94 Jesper Lagergren Sweden · #57,149 worldwide overall 22.3 of 80 papers here in the top 10%
  95. 95 Cesare Cremon Italy · #71,854 worldwide overall 19.2 of 51 papers here in the top 10%
  96. 96 Daniel A. Leffler United States · #133,985 worldwide overall 23.1 of 92 papers here in the top 10%
  97. 97 Ronald P. DeMatteo United States · #6,233 worldwide overall 19.0 of 51 papers here in the top 10%
  98. 98 Marjorie M. Walker Australia · #127,692 worldwide overall 19.2 of 54 papers here in the top 10%
  99. 99 Peter Reichardt Germany · #54,371 worldwide overall 19.3 of 56 papers here in the top 10%
  100. 100 Peter R. Gibson Australia · #53,599 worldwide overall 18.5 of 48 papers here in the top 10%

ranked researchers with an article, review or conference paper in Gastroenterology. Author identities come from OpenAlex disambiguation and inherit its errors: a merged record can put one name over two people’s work, and a split one can halve a career. Every row links out to the OpenAlex record so the underlying claim is checkable, and anything that looks wrong can be reported from the row. That report files a correction against the bibliographic record for a human to review, but it is not a removal or delisting request, and no such route exists yet.

Gastroenterology by country