Mannan, A. A., Soomro, S. A., Kumari, A., & Memon, F. A. R. (2022). Umbilical bleeding during menstruation in status post laparoscopic cholecystectomy of unknown/ambiguous aetiology. International Surgery Journal, 9(6), 1250–1253. https://doi.org/10.18203/2349-2902.isj20221419