Jin, Hua; Feng, Xiaobo; Chen, Mingming; Zhang, Chenling - In: TEST: An Official Journal of the Spanish Society of … 23 (2014) 4, pp. 691-707
Non-inferiority of one treatment to another based on ratio is a common issue in medical research. Nam and Blackwelder derived a Fieller-type statistic from constrained maximum likelihood estimation of nuisance parameters. Although it improved that of Lachenbruch and Lynch, its size still exceeds...