PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20681138-6 2000 During the period of oxytocin and PGFM pulses, progesterone concentrations decreased (P < 0.001) from mid-dioestrous to oestrous values. Progesterone 47-59 oxytocin/neurophysin I prepropeptide Homo sapiens 21-29