作者单位:NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW, Australia, Department of[1]NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW, Australia, Centre for Statistics[2]Fox Chase Cancer Center, Philadelphia, PA, United States[3]NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW, Australia[4]University of Western Sydney School of Medicine, Sydney, NSW, Australia[5]