J Twisk

Weight‐bearing activity during youth is a more important factor for peak bone mass than calcium intake

H C Kemper, W. Mechelen, J. Twisk, 1994, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Subject-related risk factors for sports injuries: a 1-yr prospective study in young adults.

H C Kemper, J Snel, J. Snel, 1996, Medicine and science in sports and exercise.