PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1483205-3 1992 Amplification of the PRL mRNA was performed by the polymerase chain reaction technique, followed by southern blotting and hybridization with a specific oligonucleotide. Oligonucleotides 152-167 prolactin Rattus norvegicus 21-24