Authors: Scot H Simpson; Dean T Eurich; Sumit R Majumdar; Rajdeep S Padwal; Ross T Tsuyuki; Janice Varney; Jeffrey A Johnson Journal: BMJ Date: 2006-06-21
Authors: D Obias-Manno; E Friedmann; M M Brooks; S A Thomas; C Haakenson; M Morris; F Wimbush; C Somelofski; F Goldner Journal: Ann Epidemiol Date: 1996-03 Impact factor: 3.797