Lichtenberg, F. R. (2004). The effect of drug vintage on survival: Micro evidence from Puerto Rico's Medicaid program. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Lichtenberg, Frank R. The Effect of Drug Vintage on Survival: Micro Evidence from Puerto Rico's Medicaid Program. Cambridge, Mass: National Bureau of Economic Research, 2004.
MLA-Zitierstil (9. Ausg.)Lichtenberg, Frank R. The Effect of Drug Vintage on Survival: Micro Evidence from Puerto Rico's Medicaid Program. National Bureau of Economic Research, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.