PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6723880-6 1984 Slight, but significant, differences were found between the B6 and D2 strains for the concentrations (microgram/100 mg wet weight) of sphingomyelin, phosphatidylcholine, and cerebrosides. Phosphatidylcholines 149-168 defensin beta 2 Mus musculus 60-69