The Paucity of Effects in Community Trials: Is Secular Trend the Culprit?

Author: Bauman K.E.   Suchindran C.M.   Murray D.M.  

Publisher: Academic Press

ISSN: 0091-7435

Source: Preventive Medicine, Vol.28, Iss.4, 1999-04, pp. : 426-429

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