Wiley, Statistics in Medicine, 19(16), p. 2191-2210, 1997
DOI: 10.1002/(sici)1097-0258(19971015)16:19<2191::aid-sim645>3.0.co;2-5
Wiley, Statistics in Medicine, 19(16), p. 2191-2210
DOI: 10.1002/(sici)1097-0258(19971015)16:19<2191::aid-sim645>3.3.co;2-x
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