PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 881104-0 1977 Relative binding affinity of androstane and C-19-nor-androstane-steroids for the estradiol-receptor in human myometrial and mammary cancer tissue. androstane 29-39 estrogen receptor 1 Homo sapiens 81-99