The prevalence of menstrual disturbances in female endurance athletes: the influence of performance level and comparison of methodologies - Noordhof, D. A.; Taylor, M.; De Martin Topranin, V.; Engseth, T. P.; Sandbakk, Ø.; Osborne, J. O. (28th Annual Congress of the European College of Sport Science, 4-7 July 2023, Paris, France, 2023)