Postmenopausal hormone therapy and mortality. - Grodstein,F.; Stampfer,M.J.; Colditz,G.A.; Willett,W.C.; Manson,J.E.; Joffe,M.; Rosner,B.; Fuches,C.; Hankinson,S.E.; Hunter,D.J.; Hennekens,C.H.; Speizer,F.E. (N Engl J Med, 1997)