title: Amniotic fluid phospholipids and fatty acids in normal pregnancies. Relation to gestational age and neonatal condition.
abstract: The plamitic acid/stearic acid ratio (P/S) follows such a rise during weeks 35 and 36 that it can be considered as a valuable index of gestational age.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis; D002849:Chromatography, Gas; D005227:Fatty Acids / Q000032:analysis; D005260:Female; D005865:Gestational Age; D006801:Humans; D006819:Hyaline Membrane Disease / Q000175:diagnosis / Q000378:metabolism; D007231:Infant, Newborn; D008168:Lung / Q000254:growth & development; D008297:Male; D010713:Phosphatidylcholines / Q000032:analysis; D010743:Phospholipids / Q000032:analysis; D011247:Pregnancy; D012127:Respiratory Distress Syndrome, Newborn / Q000175:diagnosis* / Q000378:metabolism; D013109:Sphingomyelins / Q000032:analysis
chemical_list: D005227:Fatty Acids; D010713:Phosphatidylcholines; D010743:Phospholipids; D013109:Sphingomyelins