00386pab a2200121 454500008003600000100002100036245009800057650001600155650002100171650003300192700001900225773002000244180718b   xxu||||| |||| 00| 0 eng d  aFoster, Stuart A  aFederal health care policy and the geographic diffusion of physicians: a macro-scale analysis  a Physicians  a Health Services  aHealth Care - Policy - U.S.A  aGorr, Wilpen L  aPolicy Sciences