Saleh, Ahmed Osman, Shaikha D. Al-Shokri, Ashraf Ahmed, Ahmed Elmustafa Musa, and Mouhand FH Mohamed. 2020. “Urinary Retention and Severe Hyponatremia: An Unusual Presentation of COVID-19”. European Journal of Case Reports in Internal Medicine 7 (10). https://doi.org/10.12890/2020_001905.