- Correspondence to Ngoné Diaba Gaye, Department of cardiology, Grand Yoff General Hospital, BP: 3270, Dakar, Senegal;
- Received 19 January 2017
- Revised 22 March 2017
- Accepted 24 March 2017
- Published in print 1 July 2017.
- Published online 8 June 2017.
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