Correlates of physician utilization: why do major multivariate studies of physician utilization find trivial psychosocial and organizational effects?
D003430:Cross-Sectional Studies; D003625:Data Collection; D003710:Demography; D006302:Health Services Research; D006305:Health Status Indicators; D009017:Morbidity; D010548:Personal Health Services / Q000706:statistics & numerical data*; D010820:Physicians; D012803:Sick Role; D012959:Socioeconomic Factors