00742nam0-22002771i-450-990003059090403321000305909FED01000305909(Aleph)000305909FED0100030590920000920d--------km-y0itay50------baitaITEconomic Epidemiology and Infectious DiseasesTomas PhilipsonWorking paper seriesNBER7037Salute pubblicaM/4.3Philipson,TomasITUNINARICAUNIMARCBK990003059090403321PaperSESSESEconomic Epidemiology and Infectious Diseases465328UNINAING01