Document is current

Article History

Received: 13 March 2020

Accepted: 21 May 2020

First Online: 9 July 2020

Ethics approval and consent to participate

: Our study was approved by the following ethical committees1. Taibah University, Faculty of Medical Rehabilitation Sciences, Respiratory DepartmentEthical committee number 1440-5729-12 on November 2018Institutional review board 1440-123 on December 20182. Taibah University, Faculty of Medicine, Pediatric DepartmentEthical committee number 1440-1528-7 on December 2018Institutional review board 1440-123 on December 20183. International Medina Hospital ethical committee number 1440-42 – ENT specialty January 2019 based on Ministry of Health approval of collaboration with Ministry of Higher Education 1430-11All cases participated in our work was informed by the study and subjected to written consent according to legalization rules in invasive procedure and for children; consent was taken from one of the parents. This consent was approved by the institutional review board of Taibah University and International Medina Hospital.

: All authors approved for publishing this paper in Egyptian Journal of Bronchology with correspondence to Dr. Ahmed Abumossalam.

: No competing interest in research work