d STB-40 sbe18. Samp. size calc. for clin. trials with repeated measures. d STB insert by Paul Seed, Department of Public Health Medicine, d United Medical & Dental Schools, Guy's & St. Thomas' Hospitals, UK. d Support: p.seed@@umds.ac.uk d After installation, see help ^sampsi2^. f sbe18/sampsi2.ado f sbe18/sampsi2.hlp