The idea ofteamwork in health care emerged at several times during the th 20 centuryas the resultofshifts in the nature and demandsofhealth care and societal needs. Examples include medical and surgical teams serving the military in World War II, primary care teams staffing Community Health Centers created by President Johnson's War On Poverty, and geriatric care teams established to serve the rapidly growing number of aging citizens. Collaborative teamwork surfaced as a rational solution to health care needs, but political and economic consensus to support widespread implementation was...