title: What is the correct lecithin/sphingomyelin ratio for human high-density lipoprotein?
mesh_terms: D005260:Female; D006801:Humans; D008075:Lipoproteins, HDL / Q000097:blood*; D008297:Male; D008722:Methods; D010713:Phosphatidylcholines / Q000032:analysis*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D008075:Lipoproteins, HDL; D010713:Phosphatidylcholines; D013109:Sphingomyelins