Institutions publishing large numbers of papers have a greater likelihood of collecting more citations than scientists publishing fewer papers. This ranking is by citations per paper (impact) among institutions that have collected 50,000 or more citations. In seeking to reveal the heavy hitters, this two-pronged analysis turns up smaller producers with outsized influence. For papers with multiple institutional addresses, each institution receives full, not fractional, citation credit. Essential Science Indicators lists institutions ranked in the top 1 per cent for a field over a given period, based on total citations. For the current version, 373 institutions are listed in molecular biology and genetics, meaning that a total of 37,300 institutions were reviewed to obtain these results. Of the 373 institutions, 56 collected 50,000 or more citations. Cancer Research UK supports research at many institutions throughout the UK and is similar in its organisation to the Howard Hughes Medical Institute in the US.
| Scientist | Papers | Citations | Citations per paper%3Cbr /%3E | |
| 1 | Cold Spring Harbor Lab Cold Spring Harbor, New York, USA | 701 | 63,830 | 91.06 |
| 2 | Salk Institute for Biological Studies La Jolla, California, USA | 745 | 56,974 | 76.48 |
| 3 | Massachusetts Institute of Technology Cambridge, Massachusetts USA | 1,917 | 142,140 | 74.15 |
| 4 | Memorial Sloan Kettering Cancer Centre New York, New York, USA | 1,112 | 75,528 | 67.92 |
| 5 | European Molecular Biology Lab Heidelberg, Germany | 1,585 | 101,325 | 63.93 |
| 6 | Cancer Research UK Various locations, UK | 970 | 58,740 | 60.56 |
| 7 | University of Texas Southwestern Medical Centre Dallas, Texas, USA | 1,717 | 100,954 | 58.80 |
| 8 | Rockefeller University New York, New York, USA | 1,383 | 80,473 | 58.19 |
| 9 | Massachusetts General Hospital Boston, Massachusetts, USA | 1,430 | 82,974 | 58.02 |
| 10 | Harvard University Cambridge, Massachusetts, USA | 8,312 | 447,853 | 53.88 |
| The data above were extracted from Thomson Scientific’s Essential Science Indicators database. This database, currently covering the period January 1997 to December 2007, surveys only journal articles (original research reports and review articles) indexed by Thomson Scientific. Articles are assigned to a category based on the journals in which they were published and Thomson Scientific’s journal-to-category field definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated. For more information on Thomson Scientific’s Essential Science Indicators, see http://scientific.thomson.com/products/esi. | ||||