TY  - BOOK
AU  - Abramson, J H
AU  - Abramson, Z H
TI  - Survey methods in community medicine; epidemiological research, programme evaluation, clinical trials
SN  - 0443061637
PY  - 1999///
PB  - Churchill Livingstone
KW  - Community medicine
KW  - Surveys
KW  - Epidemiologic methods
KW  - Health
ER  -