1 Department of Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY 10467, USA. Electronic address: makiyama@montefiore.org.
2 National AIDS and STI Control Programme (NASCOP), Kenya Ministry of Health, Nairobi, Kenya.
3 Department of Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY 10467, USA.
4 Department of Nursing, Yale University School of Nursing, Orange, CT, USA.