1. Cancer statistics;Silverberg;Cancer,1986
2. Cancer in Connecticut 1949–1961, 1966–1968, Connecticut Tumor Registry,1964
3. Maternal mortality in Massachusetts: Trends and prevention;Sachs;Obstet. Gynecol.,1987
4. Components of the crude risk ratio;Miettinen;Amer. J. Epidemiol.,1972
5. Cancer and pregnancy;Betson;Amer. J. Obstet. Gynecol.,1961