The mortality-fertility ratio: a useful measure for describing demographic change in the United States, 1940-1975.
D000569:Americas; D003710:Demography; D019049:Developed Countries; D009026:Mortality; D009656:North America; D011153:Population; D011156:Population Density; D011157:Population Dynamics; D011158:Population Growth; D014481:United States
Americas; Demographic Factors; Developed Countries; Mortality; North America; Northern America; Population; Population Dynamics; Population Growth; Population Size; United States