Original ResearchPublished 7 July 2026The impact of menstrual cycle phases on postoperative nausea and vomiting in premenopausal women undergoing laparoscopic gastrointestinal surgery: a secondary analysis of a randomized controlled trialChujun Liang · Xuemei Song · Chuling LiuFrontiers in Anesthesiologydoi 10.3389/fanes.2026.1872664