TY - JOUR A1 - Olshansky, S. Jay A1 - Ault, A. Brian T1 - The Fourth Stage of the Epidemiologic Transition: The Age of Delayed Degenerative Diseases Y1 - 1986 JF - The Milbank Quarterly VL - 64 IS - 3 SP - pp. 355 EP - -391. http://www.jstor.org/stable/3350025 ER -