PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 978304-0 1976 Functionalization of a steroidal C-18 angular methyl group using a 21,20-chlorohydrin. 21,20-chlorohydrin 67-85 Bardet-Biedl syndrome 9 Homo sapiens 33-37