Survival rate in acute kidney injury superimposed COVID-19 patients: a systematic review and meta-analysis - Ali, Hatem; Daoud, Ahmed; Mohamed, Mahmoud M.; Salim, Sohail Abdul; Yessayan, Lenar; Baharani, Jyoti; Murtaza, Asam; Rao, Vinaya; Soliman, Karim M. (Renal failure, 2020)