1 Department of Emergency Medicine, Warren Alpert Medical School, Brown University, 55 Claverick Street, Providence, RI, 02903, USA. jaustinlee@brown.edu.
2 Department of Biostatistics, Brown University School of Public Health, Providence, RI, USA.
3 Rhode Island Hospital, Providence, RI, USA.
4 Alpert Medical School, Brown University, Providence, RI, USA.
5 Department of Emergency Medicine, Warren Alpert Medical School, Brown University, 55 Claverick Street, Providence, RI, 02903, USA.
6 International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.