N-acetylcysteine in non-acetaminophen-induced acute liver failure: a systematic review and meta-analysis of prospective studies - Amjad, Waseem; Thuluvath, Paul; Mansoor, Muhammad; Dutta, Abhishek; Ali, Farman; Qureshi, Waqas (Gastroenterology Review/Przegląd Gastroenterologiczny, 2022)