PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28756238-0 2017 AV-1451 PET imaging of tau pathology in preclinical Alzheimer disease: Defining a summary measure. 7-(6-fluoropyridin-3-yl)-5H-pyrido(4,3-b)indole 0-7 microtubule associated protein tau Homo sapiens 23-26