scientific article published on 14 February 2020
author: Nathan Ford, Tom Ellman, Peter D Ehrenkranz, Izukanji Sikazwe, Miriam Rabkin, Anna Grimsrud, Sydney Rosen, Thabo Lejone, Tsitsi Apollo, Charles B Holmes, Ana Francisca Kolling, Ghion Tiriste, Elvin H. Geng, Helen Bygrave, Andreas Jahn