Ethical issues in intervention studies on the prevention and management of diabetes and hypertension in sub-Saharan Africa - Jeffrey V Lazarus; Tinevimbo Shiri; Shabbar Jaffar; Max Oscar Bachmann; Elizabeth Shayo; Marie Claire Van Hout; Josephine Birungi; Anupam Garrib; Sokoine Kivuyo; Moffat J Nyrienda; Ivan Namakoola; Joseph Okebe; et al. (BMJ Global Health)