PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8589505-2 1995 Although it has been suggested that estradiol (E) and progesterone (P) are involved in the expression of oxytocin receptors (OTRs), no consensus opinion has been formed on this topic. Progesterone 54-66 oxytocin/neurophysin I prepropeptide Homo sapiens 105-113