1. Jerome Baddley – Is Green the New Blue? https://www.youtube.com/watch?v=x5yl7nZsApQ. Accessed July 9, 2021.
2. AR5 Synthesis Report: Climate Change 2014 — IPCC. https://www.ipcc.ch/report/ar5/syr/. Accessed July 9, 2021.
3. Greenhouse gas reporting: conversion factors 2020 - GOV.UK. https://www.gov.uk/government/publications/greenhouse-gas-reporting-conversion-factors-2020. Accessed July 9, 2021.
4. Exposure of midwives to nitrous oxide in four hospitals;Munley;Br Med J (Clin Res Ed),1986
5. Evaluation of a modified scavenging system to reduce occupational exposure to nitrous oxide in labor and delivery rooms;Chessor;J Occup Environ Hyg,2005