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Two-stage sampling for etiologic studies : Sample size and power.

D. SCHAUBEL ; J.F. BOLVIN ; J.P. Collet ; J. HANLEY ; Y. MAO ; H.I. MORRISON ; C. SHARPE ; Centre for Clinical Epidemiology and Community Studies. Sir Mortimer B Davis-Jewish General Hospital. Montreal Québec. CAN ; Department of Epidemiology and Biostatistics. Faculty of Medicine. McGill University. Montréal Québec. CAN ; Laboratory Centre for Disease Control. Health Canada. Ottawa Ontario. CAN |

Dans American journal of epidemiology (vol. 146, n° 5, 1997)

[BDSP. Notice produite par INIST R0xlpG1T. Diffusion soumise à autorisation]. Preexisting computerized databases are potentially valuable sources of epidemiologic data. Since such databases are infrequently created specifically for etiologic res[...]

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