We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleGenetic and environmental contributions to depression symptomatology: Evidence from Danish twins 75 years of age and older.AuthorsMcGue, Matt; Christensen, KaarePublicationJournal of Abnormal Psychology, 1997, Vol 106, Issue 3, p439ISSN0021-843XDOI10.1037/0021-843x.106.3.439