Hendrikse, C, V Ngah, I I Kallon, G Thom, T D Leong, K Cohen, and M McCaul. 2023. “Signal of Harm in Morphine Use in Adults With Acute Pulmonary Oedema: A Rapid Systematic Review”. South African Medical Journal 113 (8): 39-43. https://doi.org/10.7196/SAMJ.2023.v113i8.348.