- Correspondence to Dr. Abdul Razak, Associate Clinical Professor, Princess Nora bint Abdulrahman University, King Abdullah bin Abdulaziz University Hospital, Riyadh, Al Riyadh Saudi Arabia;
- Received January 9, 2019
- Revised May 9, 2019
- Accepted May 23, 2019
- First published June 27, 2019.
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