Erratum

After publication of this work [1] it was noticed that there was a typographical error in the Conclusions. The letter ‘a’ in ‘asymtoptomatic’ should have been removed in the concluding statement as it is inconsistent with the Results and Discussion. The statement in the Conclusions should read: ‘Patients who were symptomatic placed significantly more importance on delaying an SSE when expressing medication preferences.’

The original article was corrected. The publisher apologises for this error.