Abstract

References
1.Cancer Research (1972 ) Report by Lord Zuckerman for the Cabinet Office . HMSO , London
2.
Hodgson
T A
(1975 ) In: Cancer Epidemiology and Prevention — current concepts . Ed.
Schottenfeld
D
. Charles C Thomas , Springfield, Illinois ; p 29
3.Pharmaceutical Manufacturers' Association (1976 ) Prescription Drug Industry Fact Book . PMA , Washington
4.Scrip (World Pharmaceutical News ) (1977 ) 28 May
