Unravelling the analgesic effects of perioperative magnesium in general abdominal surgery: a systematic review and meta-analysis of randomized controlled trials oleh Yasin Avci, Manikandan Rajarathinam, Neha Kalsekar, Qutaiba Tawfic, Sarah Krause, Derek Nguyen, Eric Liu, Mahesh Nagappa, Yamini Subramani