Received: 19 June 2019
Accepted: 24 July 2019
First Online: 10 September 2019
Ethics approval and consent to participate
: Prior to subject recruitment, the study protocol was reviewed and approved by the research ethics committee of the Faculty of Medicine Assiut University. Oral and written consents were obtained from all the participants in the study.
: All participants in the study approved the publication.
: No funding was received for this study; all materials were taken from the Department of Cardiology, Assiut Hospital. The authors declare that they have no competing interests.