Effect of acute kidney injury on hospital-based outcomes in patients admitted for variceal hemorrhage. Analysis of national inpatient sample database - Tarar, Zahid; Zafar, Muhammad; Farooq, Umer; Kamal, Faisal; Inayat, Faisal; Rajwana, Yasir; Ghous, Ghulam; Chela, Harleen; Tahan, Veysel; Daglilar, Ebubekir (Gastroenterology Review/Przegląd Gastroenterologiczny, 2023)