PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1986021-2 1991 The immunoreactive PTH (iPTH) level determined by RIA using antiserum specific for the C-terminal region of PTH-(65-69) was in the upper normal range (0.6 ng/mL) and over the next 7 yr increased gradually to 6 ng/mL. ipth 24-28 parathyroid hormone Homo sapiens 19-22