Correspondence to Dr A Hirschmüller, Department of Orthopedics and Trauma Surgery, Medical Center—University of Freiburg, Center for Surgery, Hugstetter Str. 55, Freiburg im Breisgau D-79106, Germany; ...

Background The importance of a standardised injury and illness surveillance system in elite sports has recently often been highlighted. The OSTRC Questionnaire on Health Problems was developed and ...