Atinga, B.-E. ., Twum-Barima, and K. T. Tsibo. “Heterotopic Pregnancy (Ruptured) With Subchorionic Bleeding: A Case Report”. British Journal of Healthcare and Medical Research, vol. 8, no. 5, Nov. 2021, pp. 38-46, doi:10.14738/jbemi.85.11125.