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. 2019 Oct 18;8(21):e011933. doi: 10.1161/JAHA.119.011933

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© 2019 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Boxplot showing door‐to‐puncture time (DTPT) during on‐ and off‐hour by annual hospital procedural volume (A) and by the number of neurointerventionalists (B). The DTPT did not show a significant difference between medium‐ and high‐volume centers during both on‐ and off‐hour. The off‐hour DTPT did not show a significant difference between hospitals with a single neurointerventionalist and 2 neurointerventionalists, but showed a significant difference between 1 or 2 neurointerventionalists and 3 neurointerventionalists per hospital. *P<0.05; **P<0.01. NS indicates not nignificant.