Received: 25 November 2021
Accepted: 19 March 2022
First Online: 8 April 2022
: An informed written consent was taken from each patient. All data obtained from every patient were confidential and were not used outside the study. The patients have rights to withdraw from the study at any time without giving any reason. All the cost of the investigations was afforded by the researcher. Our study was approved by ethical committee of the Department of Neurology, Faculty of Medicine, Fayoum University on 4/1/2020.
: Not applicable.
: The authors declare that they have no competing interests.