Optimising scale and deployment of community health workers in Sierra Leone: a geospatial analysis oleh Tanya Doherty, Debra Jackson, Nicolas Ray, Shane O’Connor, Andrew Curtis, Nicholas Paul Oliphant, Elizabeth Musa, Momodu Sesay, Joseph Kandeh, Anitta Kamara, Kebir Hassen, Yuki Suehiro, Hailemariam Legesse, Ebeny Francois Temgbait Chimoun