Received: 20 December 2019
Accepted: 19 May 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: The study was approved by the research ethical committee of faculty of physical therapy, Cairo University. Reference number: P.T.REC/012/001670. A signed informed consent from all included patients was taken before the starting of data collection; it was written by literate patients and verbally taken by illiterate patients.
: Written consent from literate patients and verbal consent from illiterate patients were taken before paper preparation.
: The authors declare that they have no competing interests.