This an Accepted Manuscript of an article published by Taylor & Francis in Research on Language and Social Interaction on 06-08-2014, available online: http://www.tandfonline.com/10.1080/08351813.2014.925663.
No takes yet. Share an insight, caveat, or question.
Elizabeth Stokoe (2014) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: