@misc{indiciae10b033998b9f, title = {Methotrexate therapy and nitrous oxide anesthesia.}, author = {P M Ueland and H Refsum and F Wesenberg and S Kvinnsland}, year = {1986}, doi = {10.1056/nejm198606053142315}, url = {https://pubmed.ncbi.nlm.nih.gov/3486365/}, note = {Source identifier: 3486365} }