1. Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada, N2L 3G1
2. Department of Statistics and Data Science, National University of Singapore, Singapore, 117546
3. Department of Biostatistics and Data Science, University of Texas Health Science Center at Houston, School of Public Health, Austin, Texas, 78731, U.S.A
4. National Institute of Allergy and Infectious Diseases, National Institutes of Health, MD 20892, U.S.A