Looking upstream.
Chapman
E
E
U.S. Health Corporation, Columbus, OH.
Wimberly
T
T
D001294:Attitude to Health; D003266:Continuity of Patient Care; D015438:Health Behavior; D018166:Health Care Reform; D006293:Health Promotion; D006801:Humans; D012941:Social Responsibility; D012946:Social Welfare; D014481:United States