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. 2019 Jun 24;6(1):e000982. doi: 10.1136/openhrt-2018-000982

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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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Chronological radiation dose for each patient. Blue bar: patients prior to the mini-lecture; green bar: patients immediately after the mini lecture; red bar. patients remotely after the mini-lecture.