TY - RPRT TI - Multivariate non-parametric methods for Mann-Whitney statistics to analyse cross-over studies with two treatment sequences. AU - J W Jung AU - G G Koch PY - 1999 DO - 10.1002/(sici)1097-0258(19990430)18:8<989::aid-sim87>3.0.co;2-t UR - https://pubmed.ncbi.nlm.nih.gov/10363336/ ID - 10363336 ER -