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Correction notice The paper has been amended since it was published Online First. Citation 6 has been added after the sentence: ‘To maximise reassurance, it has also been suggested to perform a timely review of patients to allow clinicians to assess progress towards recovery, or a method of watchful waiting to delay diagnostic imaging’. Reference 13, the first author's name has been corrected.
Competing interests None declared. Disclosure of conflicts of interest form(s) are published online as supplementary files.
Provenance and peer review Commissioned, externally peer reviewed.
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