Ruifrok, A. E., Althuizen, E., Oostdam, N., van Mechelen, W., Mol, B. W., de Groot, C. J. M., & van Poppel, M. N. M. (2014). The Relationship of Objectively Measured Physical Activity and Sedentary Behaviour with Gestational Weight Gain and Birth Weight. Hindawi Publishing Corporation.

Ruifrok, Anneloes E., Ellen Althuizen, Nicolette Oostdam, Willem van Mechelen, Ben Willem Mol, Christianne J. M. de Groot, a Mireille N. M. van Poppel. The Relationship of Objectively Measured Physical Activity and Sedentary Behaviour With Gestational Weight Gain and Birth Weight. Hindawi Publishing Corporation, 2014.

Ruifrok, Anneloes E., et al. The Relationship of Objectively Measured Physical Activity and Sedentary Behaviour With Gestational Weight Gain and Birth Weight. Hindawi Publishing Corporation, 2014.