- Correspondence to Dr Shing Fung Lee, Department of Clinical Oncology, Tuen Mun Hospital, 23 Tsing Chung Koon Road, Tuen Mun, Hong Kong;
- Received 21 November 2017
- Revision received 2 February 2018
- Accepted 14 February 2018
- Published online 2 March 2018.
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