TY  - BOOK
T1  - Research abstracts.
LA  - English
PP  - Thailand
PB  - Sangtavee Press
YR  - 1986
UL  - https://tuklas.up.edu.ph/Record/UP-1685523046125179681
OP  - 164
CN  - RA422 I58 1986
KW  - Public health : Congresses.
ER  -