Authors: Dennis H Osmond; Susan Buchbinder; Amber Cheng; Alison Graves; Eric Vittinghoff; Cynthia K Cossen; Bagher Forghani; Jeffrey N Martin Journal: JAMA Date: 2002-01-09 Impact factor: 56.272
Authors: A Ferrera; J P Velema; M Figueroa; R Bulnes; L A Toro; J M Claros; O de Barahona; W J Melchers Journal: Int J Epidemiol Date: 2000-10 Impact factor: 7.196