AMH and polycystic ovary syndrome: Therefore, this study aimed to establish age-specific AMH percentile values in a large population of women with PCOS using the following assays for its measurement: (1) original Gen II AMH ELISA (Beckman Coulter, Inc., Webster, TX, USA); (2) picoAMH assay (Ansh Labs, Webster, Texas, USA); and (3) Elecsys AMH Plus assay (Roche Diagnostics International Ltd, Rothkreuz, Switzerland).