aDuke Global Health Institute, Duke University, Durham, North Carolina
bJohns Hopkins University School of Medicine, Baltimore, Maryland, USA
cPaediatrics, Kilimanjaro Christian Medical Centre
dKilimanjaro Clinical Research Institute, Moshi, Tanzania.
Correspondence to Cody Cichowitz, Johns Hopkins University School of Medicine, 733 North Broadway Street, Baltimore, MD 21205, USA. Tel: +1 919 613 6126; e-mail: email@example.com
Received 7 February, 2018
Revised 12 April, 2018
Accepted 4 May, 2018