Sample size and power calculations in repeated measurement analysis. - Chul Ahn; John E. Overall; Scott Tonidandel (Comput. Methods Programs Biomed., 2001)

Effect of imbalance and intracluster correlation coefficient in cluster randomized trials with binary outcomes. - Chul Ahn; Fan Hu; Celette Sugg Skinner (Comput. Stat. Data Anal., 2009)

Sample size calculation for comparing time-averaged responses in k-group repeated-measurement studies. - Song Zhang 001; Chul Ahn (Comput. Stat. Data Anal., 2013)

A GEE approach to determine sample size for pre- and post-intervention experiments with dropout. - Song Zhang 001; Jing Cao; Chul Ahn (Comput. Stat. Data Anal., 2014)