Noordin, S. S., A. . Ismail, F. Abdul Karim, and I. I. Iliassa. “Factors Contributing to Red Blood Cells Crossmatch and Transfusion Among Obstetrics Patients in a Single Tertiary Hospital”. IIUM Medical Journal Malaysia, vol. 21, no. 1, Jan. 2022, doi:10.31436/imjm.v21i1.1992.