Authors: Joel F Wallace; Scott R Weingarten; Chiun-Fang Chiou; James M Henning; Andriana A Hohlbauch; Margaret S Richards; Nicole S Herzog; Lior S Lewensztain; Joshua J Ofman Journal: J Gen Intern Med Date: 2002-03 Impact factor: 5.128
Authors: A Molyneux; S Lewis; U Leivers; A Anderton; M Antoniak; A Brackenridge; F Nilsson; A McNeill; R West; J Moxham; J Britton Journal: Thorax Date: 2003-06 Impact factor: 9.139