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• Authors

  • Elliott, J R
  • Kalbac, R W
  • Newman, R L

• Topics

  • Adolescent
  • Adult
  • Amniocentesis
  • Amniotic Fluid
  • Chromatography
  • Creatinine
  • Embryonic and Fetal Development
  • False Positive Reactions
  • Female
  • Fetus
  • Gestational Age
  • Hematoma
  • Humans
  • Infant, Newborn
  • Lung
  • Phosphatidylcholines
  • Pregnancy
  • Respiratory Distress Syndrome, Newborn
  • Sphingomyelins
  • analysis
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  • English