Hannah L. Nathan, Helena Boene, Khatia Munguambe, Esperança Sevene, David Akeju, Olalekan O. Adetoro, Umesh Charanthimath, Mrutyunjaya B. Bellad, Annemarie de Greeff, John Anthony, David R. Hall, Wilhelm Steyn, Marianne Vidler, Peter von Dadelszen, Lucy C. Chappell, Jane Sandall, Andrew H. Shennan, the CLIP Working Group
Reprod Health. 2018; 15: 5. Published online 2018 Jan 5. doi: 10.1186/s12978-017-0450-y