title: Toward an operational definition of health.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006262:Health; D006801:Humans; D008875:Middle Aged; D008962:Models, Theoretical; D011379:Prognosis; D012917:Social Adjustment; D012919:Social Behavior; D012945:Social Values; D009626:Terminology as Topic