1. 1Unit of Medical Epidemiology, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
2. 2Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
3. 3Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
4. 4Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.
5. 5MRC Biostatistics Unit, University of Cambridge, Cambridge, United Kingdom.