Authors: M Packer; M Gheorghiade; J B Young; P J Costantini; K F Adams; R J Cody; L K Smith; L Van Voorhees; L A Gourley; M K Jolly Journal: N Engl J Med Date: 1993-07-01 Impact factor: 91.245
Authors: David Moher; Sally Hopewell; Kenneth F Schulz; Victor Montori; Peter C Gøtzsche; P J Devereaux; Diana Elbourne; Matthias Egger; Douglas G Altman Journal: BMJ Date: 2010-03-23