Influences of Gender on Intravenous Nalbuphine Actions After Major Abdominal Surgery: A Multicenter Study. - Ayad, Amany E.; Salman, Ossama H.; Ibrahim, Ahmed Mokhtar Fathy; Al-Taher, Waleed A. M.; Mishriky, Adel M.; Pergolizzi, Joseph V.; Viswanath, Omar; Urits, Ivan; Rekatsina, Martina; Peppin, John F.; Paladini, Antonella; Varrassi, Giustino (Pain & Therapy, 2021)