1. Department of Internal Medicine; John A. Burns School of Medicine; University of Hawaii; Honolulu HI USA
2. Department of Statistics/Biostatistics; Institute for Health; Health Care Policy and Aging Research; Rutgers University; Piscataway NJ USA
3. Department of Public Health; New York Medical College; Valhalla NY USA
4. Department of Medicine; University of Queensland; Brisbane Qld Australia
5. Rwanda Military Hospital; Kigali Rwanda
6. Department of Medicine; Montefiore Medical Center; Albert Einstein College of Medicine; Bronx NY USA