{
  "abstract": "This cohort study evaluates associations of methadone and buprenorphine levels in umbilical cord tissue with medication for opioid use disorder dosage and neonatal opioid withdrawal syndrome severity.",
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  "affiliations": [
    "Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore",
    "Department of Obstetrics and Gynecology, Yale University, New Haven, Connecticut",
    "Department of Obstetrics and Gynecology, Washington University in St Louis, St Louis, Missouri"
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      "name": "Samantha A. S. Willimas"
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      "name": "Irina Burd"
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  "doi": "10.1001/jamanetworkopen.2026.41876",
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  "pmcid": "PMC13720702",
  "pmid": "42954993",
  "published": "2026-10-01",
  "publisher": "American Medical Association (AMA)",
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  "subjects": [
    {
      "field": "medicine",
      "origin": "heading:Obstetrics and Gynecology",
      "subfield": "reproductive-child"
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  "title": "Umbilical Cord Methadone and Buprenorphine Levels and Neonatal Opioid Withdrawal Severity",
  "title_text": "Umbilical Cord Methadone and Buprenorphine Levels and Neonatal Opioid Withdrawal Severity",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:21:32Z",
  "url": "https://research.draconitic.com/paper/2x7vww4ddc0zz",
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