PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2806082-2 1989 Close scrutiny of the individual components of this surgical marking pen revealed contact dermatitis to ninhydrine, a substance whose allergenic potential has hardly been noted in the relevant literature. Ninhydrin 104-114 proprotein convertase subtilisin/kexin type 1 inhibitor Homo sapiens 69-72