Siritongtaworn, A., P. To-adithep, and O. Chaiwat. “The Implementation of a Red Blood Cell Transfusion Guideline in Critically Ill Surgical Patients at Siriraj Hospital”. Siriraj Medical Journal, vol. 71, no. 1, Feb. 2019, pp. 66-73, doi:10.33192/Smj.2019.11.