d STB-58 sg154. Confidence intervals for the ratio of two binomial ... d Confidence intervals for the ratio of two binomial proportions d by Koopman's method. d STB insert by Duolao Wang London School of Hygiene and Tropical Medicine, d London, UK. d Support: duolao.wang@@lshtm.ac.uk d After installation, see help ^koopman^ f sg154/koopman.ado f sg154/koopman.dta f sg154/koopman.hlp f sg154/koopmani.ado f sg154/koopmani.hlp