Explaining community-level variance in group randomized trials.

Autor: Feng, Ziding, Diehr, Paula, Yasui, Yutaka, Evans, Brent, Beresford, Shirley, Koepsell, Thomas D., Feng, Z, Diehr, P, Yasui, Y, Evans, B, Beresford, S, Koepsell, T D
Zdroj: Statistics in Medicine; Mar1999, Vol. 18 Issue 5, p539-556, 18p
Databáze: Complementary Index
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