Received: 29 August 2019
Accepted: 5 November 2019
First Online: 10 December 2019
Ethics approval and consent to participate
: The study protocol conforms to the ethical guidelines of the 1975 Declaration of Helsinki. The study was approved by the Medical Ethics Committee, Faculty of Medicine, Suez Canal University. An informed written consent was obtained from study participants.
: A written informed consent for publication was obtained from all the participants in the study.
: The authors declare that they have no competing interests.