[1]
Gudmundsdottir, S.L., Flanders, W.D. and Augestad, L.B. 2011. A longitudinal study of physical activity and menstrual cycle characteristics in healthy Norwegian women – The Nord-Trøndelag Health Study. Norsk Epidemiologi. 20, 2 (Aug. 2011). DOI:https://doi.org/10.5324/nje.v20i2.1337.