- Correspondence to Dr Ahwon Lee, Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpodaero, Seocho-gu, Seoul 137-701, Republic of Korea;
- Received 6 October 2016
- Revised 4 February 2017
- Accepted 23 February 2017
- Published online 15 March 2017.
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