PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25953541-3 2015 Chitosan was conjugated with an anti-CD20 polyclonal antibody (pAbCD20) by the formation of covalent amide bonds. Amides 101-106 keratin 20 Homo sapiens 37-41 24956063-3 2014 Chitosan was covalently conjugated with anti-CD20 polyclonal antibody (pAbCD20) via formation of amide bonds between amines and carboxyl groups. Amides 97-102 keratin 20 Homo sapiens 45-49