Article History
Received: 11 May 2020
Revised: 22 August 2020
Accepted: 25 August 2020
First Online: 12 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: An official permission was obtained from Institutional Review Board (IRB) at the Faculty of Medicine, Zagazig University Hospitals and from the Rheumatology and Rehabilitation Department. The study has been carried out in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki 1964) for studies involving humans in research protocol number (3970). A written informed consent was obtained from the participants.