Mejia, Alfonso a, Physician and nurse migration : analysis and policy implications / report of a WHO study, by Alfonso Mejia - Helena Pizurkiand Erica Royston. - Geneva World Health Organization 1979 - 476 pages ; illustrations ; 24 cm. Includes index. ISBN: 9241560592 Subjects--Topical Terms: Physicians, Foreign.Nurses, Foreign.Brain drain.