PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12042261-7 2002 There was more variation in pregnanediol:creatinine in the normal-ovary infertile and PCO groups than in the fertile controls. Creatinine 41-51 PCOS1 Homo sapiens 86-89 12042261-9 2002 In summary, there was greater variability in luteal phase pregnanediol:creatinine ratios in the PCO and infertile normal-ovary groups than in women with normal ovaries and proven fertility. Creatinine 71-81 PCOS1 Homo sapiens 96-99