1. Loose connections between peer reviewed clinical journals and clinical practice;Haynes;Ann Intern Med,1990
2. Citation analysis for measuring the value of scientific publications: quality assessment tool or comedy of errors?;Schoonbaert;Trop Med Int Health,1996
3. The ups and downs of journal impact factor;Ogden;Ann Occup Hyg,2007
4. Impact factor: a valid measure of journal quality?;Saha;J Med Libr Assoc,2003
5. Association of journal quality indicators with methodological quality of clinical research articles;Lee;JAMA,2002