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.; Sørensen, H.; Hebert, J. J.; Attermann, J. (Scandinavian Journal of Medicine & Science in Sports (John Wiley & Sons, Inc.), 2018)