title: Advanced twin designs.
authors.affiliation: ralthoff@uvm.edu
authors.forename: Robert R
authors.initials: RR
authors.lastname: Althoff
mesh_terms: D000293:Adolescent; D002648:Child; D004200:Diseases in Twins / Q000235:genetics* / Q000523:psychology; D044127:Epigenesis, Genetic / Q000235:genetics; D006801:Humans; D001523:Mental Disorders / Q000235:genetics* / Q000523:psychology; D010641:Phenotype; D012737:Sex Factors; D012931:Social Environment; D014429:Twins, Dizygotic / Q000235:genetics / Q000523:psychology; D014430:Twins, Monozygotic / Q000235:genetics / Q000523:psychology