PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18045609-2 2008 The radiochemical purity of tracers (fluorine-18 labeled) purified using this method (Oasis column) was >99% compared to 90% when no Oasis column was used. Fluorine-18 37-48 cAMP responsive element binding protein 3 like 1 Homo sapiens 86-91