The SMS, Phone, and medical examination sports injury surveillance system is a feasible and valid approach to measuring handball exposure, injury occurrence, and consequences in elite youth sport - Møller, M.; Wedderkopp, N.; Myklebust, G.; Lind, M.; Sorensen, H.; Hebert, J. J.; Attermann, J. (Scandinavian Journal of Medicine & Science in Sports, 2018)