Identifying knowledge needed to improve surgical care in Southern Africa using a theory of change approach oleh Susan Levine, Lucia D'Ambruoso, Bruce Biccard, Kathryn Chu, Maria Lisa Odland, Ché L Reddy, Danyca Shadé Breedt, Balisi Bakanisi, Edward Clune, Moneimang Makgasa, John Tarpley, Margaret Tarpley, Akutu Munyika, Jacob Sheehama, Theresia Shivera, Regan Boden, Sean Chetty, Liesl de Waard, Rowan Duys, Kristin Groeneveld, Tamlyn Mac Quene, Salome Maswime, Priyanka Naidu, Shrikant Peters, Savannah Verhage, Godfrey Muguti, Shingai Nyaguse