PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7925762-7 1994 An alternative conclusion based on these same data was proposed by Rubio and Cox, who found that 67.5% of the variation in alfentanil clearance in women was explained when clearance values were divided into groups by menopausal status. Alfentanil 123-133 cytochrome c oxidase subunit 8A Homo sapiens 77-80