TY - RPRT TI - Practical issues in equivalence trials. AU - A F Ebbutt AU - L Frith DO - 10.1002/(sici)1097-0258(19980815/30)17:15/16<1691::aid-sim971>3.0.co;2-j UR - https://pubmed.ncbi.nlm.nih.gov/9749440/ ID - 9749440 ER -