1. GSMA Intelligence. The mobile economy 2019 [Internet]. London: GSMA Intelligences; 2019. Available from: https://www.gsmaintelligence.com/research /?file=b9a6e6202ee1d5f787cfebb95d3639c5&download. Accessed 12 February 2021.
2. A pilot of the use of short message service (SMS) as a training tool for anaesthesia nurses;Duys R;SAJAA.,2017
3. Evidence on feasibility and effective use of mHealth strategies by frontline health workers in developing countries: systematic review;Agarwal S;Trop Med Int Heal.,2015
4. Barriers to clinical research in Africa: a quantitative and qualitative survey of clinical researchers in 27 African countries;Conradie A;Br J Anaesth.,2018
5. Perioperative patient outcomes in the African Surgical Outcomes Study: a 7-day prospective observational cohort study;Biccard BM;Lancet.,2018