title: A method for determination of lecithin and sphingomyelin in amniotic fluid.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D002845:Chromatography; D005260:Female; D008722:Methods; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D013109:Sphingomyelins / Q000032:analysis*; D013194:Staining and Labeling; D007507:Therapeutic Irrigation
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins