1. Department of Neurobiology; Care Sciences and Society; Karolinska Institutet; Stockholm; Sweden
2. Centre for Applied Biostatistics; Sahlgrenska Academy; University of Gothenburg; Gothenburg; Sweden
3. Faculty of Public Health; Hanoi Medical University; Hanoi; Vietnam
4. Faculty of Epidemiology and Population Health; London School of Hygiene and Tropical Medicine; London; UK