Monzón Rubio, E. M. Ketamina En Analgesia Multimodal Postcesarea: Bauchat JR, Higgins N, Wojciechowski KG, McCarthy RJ, Toledo P, Wong CA. Low-Dose Ketamine With Multimodal Postcesarean Delivery Analgesia: A Randomized Controlled Trial. Int J Obstet Anesth. 2011 Jan;20(1):3-9. PMID: 21224020. Rev Elect AnestesiaR 2011, 3, 4.