TY  - BOOK
T1  - Medical surveys and clinical trials : some methods and applications of group research in medicine
A1  - Witts, L. J.
LA  - English
PP  - London
PB  - Oxford University Press
YR  - 1964
ED  - 2a. ed
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dfi.5147
OP  - 367
KW  - Medicina
ER  -