van den Heever, Andreas, Juan Scribante, Helen Perrie, and Warren Lowman. “Microbial Contamination and Labelling of Self-Prepared, Multi-Dose Phenylephrine Solutions Used at a Teaching Hospital”. Southern African Journal of Anaesthesia and Analgesia 22, no. 6 (February 13, 2018): 175–179. Accessed August 28, 2026. https://www.ajol.info/index.php/sajaa/article/view/166621.