Jahanara, Harish Singh Koshyari, Veena Asthana, and Ruchira Nautiyal. “Comparison of Premixed With Sequential Administration of Intrathecal Morphine and Hyperbaric Bupivacaine for Lower Segment Caesarean Section”. Academia Anesthesiologica International 5, no. 1 (July 6, 2020): 174-178. Accessed April 26, 2024. http://aijournals.com/index.php/aan/article/view/1611.