Lirong Yan

No ORCID on file · 2 papers in corpus

rct 2026

Cost-effectiveness of levonorgestrel intrauterine system versus hysteroscopic niche resection for caesarean scar-related spotting in China: an economic evaluation alongside a randomised controlled trial

BMJ open ·doi:10.1136/bmjopen-2024-090247

OBJECTIVE: To evaluate the cost-effectiveness of the levonorgestrel intrauterine system (LNG-IUS) compared with hysteroscopic niche resection (HNR) for women with niche-related postmenstrual spotting. DESIGN: Economic evaluation from a hea…

observational 2023

[Correlation analysis of vitamin D level and anti-Müllerian hormone in infertile female and the role in predicting pregnancy outcome]

Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences ·doi:10.19723/j.issn.1671-167x.2023.01.026

OBJECTIVE: To investigate the relationship between serum 25(OH)D and anti-Müllerian hormone (AMH) among infertile females and their predictive impacts on in vitro fertilization and embryo transfer pregnancy outcome. METHODS: Totally 756 in…