TY - RPRT TI - Comparing two prevalence rates in a two-phase design study. AU - X H Zhou AU - P Castelluccio AU - S L Hui AU - C A Rodenberg PY - 1999 DO - 10.1002/(sici)1097-0258(19990530)18:10<1171::aid-sim113>3.0.co;2-u UR - https://pubmed.ncbi.nlm.nih.gov/10363338/ ID - 10363338 ER -