Mohsen, S. M., Farrag, A. M., Abdwahed, M. (2022). 'COVID 19-Related Life-Threatening Spontaneous Retroperitoneal Bleeding: Therapeutic Modalities and Prognostic Factors of Mortality: A Retrospective Observational Study in An Isolation University Hospital', The Egyptian Journal of Hospital Medicine, 89(1), pp. 5088-5096. doi: 10.21608/ejhm.2022.261175