title: Birth order and related variables in a large outpatient population.
mesh_terms: D001722:Birth Order; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D001523:Mental Disorders / Q000453:epidemiology / Q000235:genetics; D009519:New York City; D010044:Outpatient Clinics, Hospital; D010551:Personality; D012737:Sex Factors; D012801:Sibling Relations; D013223:Statistics as Topic