Understanding the twentieth century decline in chronic conditions among older men

Manylion Llyfryddiaeth
Prif Awdur:	Costa, Dora L.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Cambridge National Bureau of Economic Research 1998.
Cyfres:	NBER working paper series no.6859
Pynciau:	Occupational diseases > History > 20th century. > United States. Industrial safety > History > 20th century. > United States. Communicable diseases > Prevention > History > 20th century. > United States. Aged men > Health and hygiene > History > 20th century. > United States.