Authors: L Sagliocca; P Amoroso; T Stroffolini; B Adamo; M E Tosti; G Lettieri; C Esposito; S Buonocore; P Pierri; A Mele Journal: Lancet Date: 1999-04-03 Impact factor: 79.321
Authors: Y J Hutin; V Pool; E H Cramer; O V Nainan; J Weth; I T Williams; S T Goldstein; K F Gensheimer; B P Bell; C N Shapiro; M J Alter; H S Margolis Journal: N Engl J Med Date: 1999-02-25 Impact factor: 91.245