the relationship between the presence or absence of an ovulation stigma and ( 1 ) the fertility status , ( 2 ) the incidence of endometriosis , ( 3 ) the concentration of progesterone and estradiol in the peritoneal fluid , and ( 4 ) the blood levels of luteinizing hormone , follicle-stimulating hormone , progesterone , and estradiol in 21 fertile and 45 infertile patients who underwent a laparoscopy in the early ( n = 48 ) or late luteal phase ( n = 18 ) was investigated .
C0733758
follicle-stimulating hormone
C0021359
infertile