机构:
Harvard Med Sch, Dept Hlth Care Policy, 180 Longwood Ave, Boston, MA 02115 USAHarvard Med Sch, Dept Hlth Care Policy, 180 Longwood Ave, Boston, MA 02115 USA
机构:
Univ Helsinki, Dept Gen Practice & Primary Hlth Care, FIN-00014 Helsinki, Finland
Univ Helsinki, Helsinki Univ Hosp, Unit Primary Hlth Care, FIN-00014 Helsinki, FinlandUniv Helsinki, Dept Gen Practice & Primary Hlth Care, FIN-00014 Helsinki, Finland