Genetics, twin studies, and suicide.
D000293:Adolescent; D000328:Adult; D000818:Animals; D003469:Culture; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008957:Models, Genetic; D012801:Sibling Relations; D013405:Suicide / Q000523:psychology; D013406:Suicide, Attempted; D014429:Twins, Dizygotic / Q000523:psychology; D014430:Twins, Monozygotic / Q000523:psychology