title: Letter: Complication of laparoscopy during early pregnancy.
mesh_terms: D002245:Carbon Dioxide; D005260:Female; D006801:Humans; D001239:Inhalation; D010535:Laparoscopy / Q000009:adverse effects*; D008722:Methods; D009609:Nitrous Oxide; D011247:Pregnancy; D011248:Pregnancy Complications; D011312:Pressure; D013245:Sterilization, Reproductive
chemical_list: D002245:Carbon Dioxide; D009609:Nitrous Oxide