- Correspondence to Dr Savvoula Savvidou, ‘Papageorgiou’ General Hospital, Ring Road N.Efkarpia-Thessaloniki, Thessaloniki 56402, Greece;
- Received 7 March 2017
- Revised 20 May 2017
- Accepted 29 May 2017
- Published in print 1 October 2017.
- Published online 13 September 2017.
- Published first 25 July 2017.
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