Differing performance of two assays for the measurement of anti-Mullerian hormone in premenopausal women: A cross-sectional study.

This study demonstrates that despite the high correlation between two commercially available AMH assays, the assays performed in a discordant manner at high and low concentrations. Hence, the results of these assays are not interchangeable, highlighting the need to establish specific reference limits for individual assays to guide clinical decision-making and the challenge of establishing future universal cut-offs for the application of AMH levels in clinical practice.