©2013 National Research Council of Thailand
Chukiat Viwatwongkasem and others. 2002. A comparison of risk difference estimators in multi-center studies under baseline-risk heterogeneity. [Bangkok:Mahidol University];
Chukiat Viwatwongkasem and others. (2002) A comparison of risk difference estimators in multi-center studies under baseline-risk heterogeneity. Mahidol University]:[Bangkok.
Chukiat Viwatwongkasem and others. A comparison of risk difference estimators in multi-center studies under baseline-risk heterogeneity. [Bangkok:Mahidol University], 2002. Print.
Chukiat Viwatwongkasem and others. (2002) A comparison of risk difference estimators in multi-center studies under baseline-risk heterogeneity. Mahidol University]:[Bangkok.