| 1. | Nature | 295 | 427 |
| 2. | New England Journal of Medicine | 274 | 450 |
| 3. | Science | 265 | 388 |
| 4. | RePEc | 259 | 356 |
| 5. | arXiv | 256 | 367 |
| 6. | The Lancet | 205 | 313 |
| 7. | Social Science Research Network | 205 | 290 |
| 8. | Cell | 195 | 279 |
| 9. | Proceedings of the National Academy of Sciences | 189 | 237 |
| 10. | Nature Genetics | 174 | 268 |
| 11. | Journal of Clinical Oncology | 173 | 229 |
| 12. | JAMA: The Journal of the American Medical Association | 171 | 246 |
| 13. | Physical Review Letters | 162 | 213 |
| 14. | Circulation | 159 | 251 |
| 15. | Chemical reviews | 144 | 248 |
| 16. | Blood | 141 | 192 |
| 17. | The Astrophysical Journal | 140 | 181 |
| 18. | Journal of the American College of Cardiology | 139 | 192 |
| 19. | Journal of the American Chemical Society | 138 | 174 |
| 20. | Nucleic Acids Research | 135 | 239 |
| 21. | Angewandte Chemie International Edition | 133 | 190 |
| 22. | Nature Reviews Molecular Cell Biology | 128 | 219 |
| 23. | Nature Medicine | 127 | 191 |
| 24. | Nano Letters | 127 | 177 |
| 25. | The Journal of Clinical Investigation | 125 | 179 |
| 26. | Nature Reviews Cancer | 123 | 199 |
| 27. | Nature Immunology | 120 | 191 |
| 28. | Cancer Research | 120 | 165 |
| 29. | Physical Review D | 119 | 152 |
| 30. | Chemical Society reviews | 117 | 174 |
| 31. | Neuron | 117 | 155 |
| 32. | Nature Reviews Immunology | 116 | 198 |
| 33. | Gastroenterology | 116 | 155 |
| 34. | NBER WORKING PAPER SERIES | 115 | 177 |
| 35. | Immunity | 115 | 172 |
| 36. | The Journal of Experimental Medicine | 114 | 156 |
| 37. | Nature Materials | 113 | 202 |
| 38. | Nature Reviews Genetics | 113 | 194 |
| 39. | Annals of Internal Medicine | 113 | 180 |
| 40. | Nature Biotechnology | 112 | 200 |
| 41. | Cochrane database of systematic reviews (Online) | 112 | 156 |
| 42. | Nature Reviews Neuroscience | 110 | 175 |
| 43. | BMJ | 110 | 165 |
| 44. | Advanced Materials | 110 | 154 |
| 45. | Physical Review B | 110 | 147 |
| 46. | Journal of Biological Chemistry | 110 | 141 |
| 47. | The Journal of Neuroscience | 110 | 133 |
| 48. | Journal of High Energy Physics | 107 | 138 |
| 49. | Nature Cell Biology | 106 | 154 |
| 50. | Genes & Development | 106 | 147 |
| 51. | The American Economic Review | 105 | 167 |
| 52. | The Journal of Immunology | 104 | 132 |
| 53. | Molecular Cell | 103 | 157 |
| 54. | Cancer Cell | 103 | 149 |
| 55. | Angewandte Chemie | 103 | 133 |
| 56. | Clinical Cancer Research | 103 | 133 |
| 57. | Hepatology | 102 | 144 |
| 58. | The Lancet Neurology | 101 | 144 |
| 59. | Monthly Notices of the Royal Astronomical Society | 101 | 128 |
| 60. | Oncogene | 100 | 147 |
| 61. | Accounts of Chemical Research | 100 | 145 |
| 62. | Nature Neuroscience | 100 | 137 |
| 63. | PLoS ONE | 100 | 130 |
| 64. | Nature Methods | 99 | 139 |
| 65. | Nature Physics | 99 | 137 |
| 66. | Clinical Infectious Diseases | 99 | 136 |
| 67. | Astronomy and Astrophysics | 99 | 132 |
| 68. | Archives of internal medicine | 98 | 138 |
| 69. | Neurology | 98 | 125 |
| 70. | Nature Nanotechnology | 97 | 172 |
| 71. | The Journal of Finance | 97 | 156 |
| 72. | Journal of Clinical Endocrinology & Metabolism | 96 | 133 |
| 73. | American Journal of Respiratory and Critical Care Medicine | 96 | 131 |
| 74. | Applied Physics Letters | 96 | 120 |
| 75. | Journal of Financial Economics | 95 | 165 |
| 76. | Nature Reviews Drug Discovery | 95 | 162 |
| 77. | Review of Financial Studies | 95 | 144 |
| 78. | Diabetes Care | 95 | 135 |
| 79. | Arthritis and Rheumatism | 94 | 119 |
| 80. | Biomaterials | 93 | 115 |
| 81. | The Journal of Cell Biology | 93 | 115 |
| 82. | European Heart Journal | 92 | 139 |
| 83. | PLoS Biology | 92 | 132 |
| 84. | Cell Stem Cell | 91 | 149 |
| 85. | Journal of the National Cancer Institute | 90 | 133 |
| 86. | Nature Reviews Microbiology | 90 | 132 |
| 87. | NeuroImage | 90 | 128 |
| 88. | PLoS Medicine | 90 | 127 |
| 89. | Genome Research | 90 | 126 |
| 90. | Journal of Allergy and Clinical Immunology | 90 | 121 |
| 91. | Chest | 89 | 136 |
| 92. | PLoS Genetics | 89 | 132 |
| 93. | Brain | 89 | 123 |
| 94. | Environmental Science & Technology | 89 | 123 |
| 95. | The American Journal of Clinical Nutrition | 89 | 122 |
| 96. | Current Biology | 89 | 112 |
| 97. | IEEE Conference on Computer Vision and Pattern Recognition, CVPR | 88 | 133 |
| 98. | Biological Psychiatry | 88 | 123 |
| 99. | Pediatrics | 88 | 121 |
| 100. | American Journal of Psychiatry | 88 | 113 |
