TY  - BOOK
AU  - Clark,Duncan W.
AU  - MacMahon,Brian
TI  - Preventive medicine
AV  - RA425 .C55
U1  - 614.4/4 
PY  - 1967///
CY  - Boston
PB  - Little, Brown
KW  - Medicine , Preventive
KW  - Local
N1  - Includes index; Includes bibliographies
ER  -