title: The monozygotic half-sib model: a tool for epidemiologic research.
mesh_terms: D000328:Adult; D002648:Child; D003593:Cytoplasm / Q000502:physiology; D005190:Family; D005260:Female; D005815:Genetic Code; D014644:Genetic Variation; D005823:Genetics; D005828:Genetics, Population; D006801:Humans; D008297:Male; D010375:Pedigree; D011247:Pregnancy; D012107:Research Design; D012737:Sex Factors; D012931:Social Environment; D014427:Twins; D014430:Twins, Monozygotic