- Correspondence to Dr Gruschen R Veldtman, Adolescent and Adult Congenital Heart Disease Program, King Faisal Specialist Hospital and Research Center, Riyadh 45229, Saudi Arabia;
- Received May 27, 2020
- Revised October 16, 2020
- Accepted October 21, 2020
- First published November 24, 2020.
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