TY  - BOOK
AU  - Hulley,Stephen B.
AU  - Cummings,Steven R.
AU  - Browner,Warren S.
AU  - Newman,Thomas B.
AU  - Hearst,Norman
TI  - Designing clinical research: an epidemiologic approach 
SN  - 9780683042498 (pbk.)
U1  - WA 950 
PY  - 1988///
CY  - Baltimore
PB  - Williams & Wilkins
KW  - Epidemiologic Methods
KW  - Research Design
N1  - Includes bibliographies and index
ER  -