title: Letter: Use of a new phospholipid spray reagent for determining lecithin-sphingomyelin ratio.
mesh_terms: D002855:Chromatography, Thin Layer; D003300:Copper; D007202:Indicators and Reagents; D008722:Methods; D008982:Molybdenum; D010713:Phosphatidylcholines / Q000032:analysis*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D010713:Phosphatidylcholines; D013109:Sphingomyelins; D003300:Copper; D008982:Molybdenum