[Retracted] Efficacy of Letrozole Combined with Urinary Gonadotropin for Ovulation Induction in Endocrine Abnormal Infertility Patients: A Retrospective Single-Center, Case-Control Study

Table 2

Analysis of sex hormones in two groups of patients ().

Group comparison group (80)	LH (miv/mL)		FSH (miv/mL)		PRL (ng/mL)		E2 (pg/mL)
	Before therapy	After treatment	Before therapy	After treatment	Before therapy	After treatment	Before therapy	After treatment
Observation group (80)
Group
	-0.706	3.669	0.130	-3.280	0.007	10.053	0.009	6.135
	0.481	≤0.001	0.897	≤0.001	0.994	≤0.001	0.993	≤0.001