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. 2019 Jun 14;9(6):e024700. doi: 10.1136/bmjopen-2018-024700

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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.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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χ² automatic interaction detection tree diagram showing the correlates of the QI score. *These values indicate the numbers of positive responses to questionnaire items related to (i) electronic health records and internet availability, (ii) wireless LAN availability and (iii) wired LAN availability at outpatient clinics/wards. **P=0.0499, in detail. DB, database; LAN, local area network; QI, quality indicator.