. . . . . . . "[Studies on genetic contributions to labor analgesia have essentially evaluated the ?-opioid receptor gene (OPRM1), with some evidence that p.118A/G of OPRM1 influences the response to neuraxial opioids.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:15:08+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .