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. 2019 Nov 25;9(11):e033638. doi: 10.1136/bmjopen-2019-033638

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Domains, problem categories and subcategories of the Healthcare Complaints Analysis Tool (HCAT) taxonomy (compare Gillespie and Reader⁸).