title: Reply from the authors.
authors.forename: A
authors.initials: A
authors.lastname: Dahan
mesh_terms: D000701:Analgesics, Opioid / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011247:Pregnancy; D012131:Respiratory Insufficiency / Q000139:chemically induced* / Q000453:epidemiology*
chemical_list: D000701:Analgesics, Opioid