Study design and setting
A mixed-method non-randomised clinical trial was carried out at two teaching healthcare facilities in Nigeria. The study was carried out at the University College Hospital, Ibadan (intervention site), a 950-bed teaching hospital affiliated with University of Ibadan. The University of Ilorin Teaching Hospital, Ilorin (control site) is a 650-bed teaching hospital affiliated with University of Ilorin. Both sites are major referral centers and centers of excellence for undergraduate and postgraduate training for physicians, pharmacists, nurses, and other healthcare practitioners in Nigeria. The study was carried out for a duration of 12 months.