PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31435595-9 2019 Maturation rate was 23.3% in oocytes cultured in IVM medium enriched with GDF9, and 27.6% in those cultured in IVM medium lacking GDF9 (p = 0.86). ivm medium 49-59 growth differentiation factor 9 Homo sapiens 74-78