TY  - BOOK
AU  - Witts,L.J.
TI  - Medical surveys and clinial trials: some methods and applications of group research in medicine
U1  - 619 
PY  - 1964///
CY  - London
PB  - Oxford Univeristy Press
KW  - Medicine
KW  - Research
KW  - Operations research
KW  - Group work in research
N1  - Includes bibliographical references and index
ER  -