Authors: P Prandoni; A W Lensing; A Cogo; S Cuppini; S Villalta; M Carta; A M Cattelan; P Polistena; E Bernardi; M H Prins Journal: Ann Intern Med Date: 1996-07-01 Impact factor: 25.391
Authors: M Levine; J Hirsh; M Gent; A Arnold; D Warr; A Falanga; M Samosh; V Bramwell; K I Pritchard; D Stewart Journal: Lancet Date: 1994-04-09 Impact factor: 79.321