Martin DC, Diehr P, Perrin EB, Koepsell TD. The effect of matching on the power of randomized community intervention studies. Stat Med. 1993 Feb;12(3-4):329-38.
Martin DC, Diehr P, Perrin EB, Koepsell TD. The effect of matching on the power of randomized community intervention studies. Stat Med. 1993 Feb;12(3-4):329-38.