What percentage of WAD patients go on to develop a chronic condition?

Simeon stated that the sternocleidomastoid muscle has an enhanced role in proprioception.  Which of the following muscles did he also say has a greater proprioceptive function?

According to the Quebec Task Force definitions, at which level of Whiplash Associated Disorder do neurological deficits first appear?

What is the trigger point pain map for the clavicular head of the sternocleidomastoid?

What did Simeon propose as a means of locating the posterior scalene muscle?