"California." . . "Humans." . . . . "A new longitudinal human capital rate-of-return model with physicians as subjects"@en . . . . . . . . . . . . . . . . . "A New longitudinal human capital rate-of-return model with physicians as subjects"@en . . . . . "Time Factors." . . . . "Delivery of Health Care." . . "Physicians." . . "Economics, Medical." . .