Hassan, Arwa Mohammad
Farghal, Nessma Mohamed Ahmed
Hegab, Doaa Salah http://orcid.org/0000-0002-4716-7823
Mohamed, Wesam Salah
Abd-Elnabi, Hend Hassan
Article History
Received: 13 February 2018
Revised: 20 June 2018
Accepted: 9 July 2018
First Online: 13 July 2018
Compliance with ethical standards
: An informed written consent was obtained from the parents of all the included children before participation, and the study was approved by the institutional review board of the research ethics committee of Quality Assurance Unit, Faculty of Medicine, Tanta University.
: None.