PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3579210-5 1987 There was, however, a linear relationship between TBC and the progesterone + cortisol sum, such that a unit increase in TBC was accompanied by an approximate unit increase in the total concentration of the two main transcortin binding steroids. Progesterone 62-74 serpin family A member 6 Homo sapiens 215-226