1. Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, California, USA;
2. Jonsson Comprehensive Cancer Center, University of California, UCLA, Los Angeles, California, USA;
3. Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan;
4. Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan;
5. Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan;
6. Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
7. Department of Pediatrics, Geffen School of Medicine, University of California, UCLA, Los Angeles, California, USA;
8. Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, California, USA;
9. Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark;
10. Danish Cancer Society Research Center, Copenhagen, Denmark;