title: Metformin and the risk of cancer in type 2 diabetes: methodological challenges and perspectives.
authors.affiliation: 1 Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China ; 2 Department of Medicine and Therapeutics, 3 Hong Kong Institute of Diabetes and Obesity, 4 Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
authors.forename: Xilin
authors.initials: X
authors.lastname: Yang
authors.affiliation: 1 Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China ; 2 Department of Medicine and Therapeutics, 3 Hong Kong Institute of Diabetes and Obesity, 4 Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
authors.forename: Juliana Cn
authors.initials: JC
authors.lastname: Chan