1. Impotence and nerve entrapment in long distance amateur cyclists;Andersen;Acta Neurol Scand,1997
2. Mountainbiken;Arnold;Orthopäde,2005
3. Head injuries in athletes;Bailes;Neurosurgery,2001
4. Experience with cervical stenosis and temporary paralysis in athletes;Bailes;J Neurosurg Spine,2005
5. Is heading a soccer ball injurious to brain function?;Baroff;J Head,1998