PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8245966-4 1993 A beta(1-28) associates with heparin, heparan sulfate, dermatan sulfate, and chondroitin sulfate. Chondroitin Sulfates 77-96 amyloid beta precursor protein Homo sapiens 0-6