TY  - GEN
AU  - Lang,J M
AU  - Buring,J E
AU  - Rosner,B
AU  - Cook,N
AU  - Hennekens,C H
TI  - Estimating the effect of the run-in on the power of the Physicians' Health Study
SN  - 0277-6715
PY  - 1991///1226
KW  - Aspirin
KW  - therapeutic use
KW  - Cardiovascular Diseases
KW  - mortality
KW  - Carotenoids
KW  - Data Interpretation, Statistical
KW  - Double-Blind Method
KW  - Humans
KW  - Neoplasms
KW  - prevention & control
KW  - Patient Compliance
KW  - Randomized Controlled Trials as Topic
KW  - methods
KW  - Research Design
KW  - Surveys and Questionnaires
KW  - beta Carotene
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S
UR  - https://doi.org/10.1002/sim.4780101010
ER  -