00357nam a2200145Ia 4500008004100000020001500041041000800056082002000064100002300084245002200107250000600129260004300135300001200178650002100190210716s1997    xx            000 0 und d  a0673993981  aeng  a338.433621 PHES  aPhelps, Charles E.  aHealth economics.  a2  aNew YorkbAddison Wesley Longmanc1997  axvi,685  aEntrepreneurship