Hallett TB, Gregson S, Garnett GP, Takaruza A, Mason P, Mugurungi O, Rhead R, Maswera R, Mutsvangwa J, Mayini J, Skovdal M, Schaefer R, Sherr L, Munyati S, Campbell C, Eaton JW, Nyamukapa CA
BMJ Open, 2017 ; 7 : 6 Oct