KHAN, Parhaizgar; SAID, Akbar. Effect of Ranitidine on Gastric pH and volume in women undergoing elective caesarean section. Journal of Postgraduate Medical Institute, [S. l.], v. 13, n. 2, 2011. Disponível em: https://www.jpmi.org.pk/index.php/jpmi/article/view/655. Acesso em: 5 dec. 2025.