[1] Division of Biostatistics and Centre for Clinical Research and Biostatistics(CCRB),
[2] JC School of Public Health and Primary Care,undefined
[3] the Chinese University of Hong Kong,undefined
[4] Sha Tin,undefined
[5] Centre for Clinical Trials and Biostatistics,undefined
[6] CUHK Shenzhen Research Institute,undefined
[7] Institute of Digestive Diseases and Department of Medicine & Therapeutics,undefined
[8] State Key Laboratory of Digestive Diseases,undefined
[9] LKS Institute of Health Sciences,undefined
[10] CUHK Shenzhen Research Institute,undefined
[11] Department of Anesthesia,undefined
[12] the Chinese University of Hong Kong,undefined
[13] Sha Tin,undefined