Authors: F Grodstein; M J Stampfer; S Z Goldhaber; J E Manson; G A Colditz; F E Speizer; W C Willett; C H Hennekens Journal: Lancet Date: 1996-10-12 Impact factor: 79.321
Authors: C Varas-Lorenzo; L A García-Rodríguez; C Cattaruzzi; M G Troncon; L Agostinis; S Perez-Gutthann Journal: Am J Epidemiol Date: 1998-02-15 Impact factor: 4.897