Sex control in mammals.
D000830:Animals, Laboratory; D003710:Demography; D011153:Population; D011154:Population Characteristics; D012106:Research; D017678:Sex Distribution; D012737:Sex Factors; D012744:Sex Ratio
Animals, Laboratory; Clinical Research; Comparative Studies; Demographic Factors; Population; Population Characteristics; Research Methodology; Sex Distribution; Sex Factors; Sex Ratio; Studies