1. Baysinger, C. (n.d.). Nitrous oxide. Retrieved from https://www.asahq.org/resources/resources-from-asa-committees/nitrous-oxide
2. A case report on the anxiolytic properties of nitrous oxide during labor;Collins;Journal of Obstetric, Gynecologic, & Neonatal Nursing,2015
3. Nitrous oxide utility in labor and birth: A multipurpose modality;Collins;Journal of Perinatal & Neonatal Nursing,2017
4. Nitrous oxide for labor analgesia: Expanding analgesic options for women in the United States;Collins;Reviews in Obstetrics and Gynecology,2012