title: Compelling retrospective results call for creative prospective investigations.
authors.forename: S J
authors.initials: SJ
authors.lastname: Suomi
mesh_terms: D000818:Animals; D018450:Disease Progression; D005260:Female; D006799:Housing, Animal; D008253:Macaca mulatta; D008297:Male; D011446:Prospective Studies; D011598:Psychoneuroimmunology; D012189:Retrospective Studies; D016097:Simian Acquired Immunodeficiency Syndrome / Q000276:immunology / Q000401:mortality / Q000523:psychology*; D012931:Social Environment; D012934:Social Isolation; D013315:Stress, Psychological / Q000150:complications