Total Testosterone Measured by Liquid Chromatograph-Tandem Mass Spectrometry Refines Diagnosis of Biochemical Hyperandrogenism and Better Identifies Subgroup at Genuine Risk of Adverse Fertility Outcomes in Women With Polycystic Ovary Syndrome. - Li J; Wu Q; Cong J; Chang H; Ma HL; Zhang DJ; Wang Y; Zhang RZ; Kam RKT; Ho CS; Chan MHM; Ma RCW; et al. (Reproductive medicine and biology, 2026)