Article History
Received: 28 March 2019
Accepted: 9 June 2019
First Online: 26 June 2019
Ethics approval and consent to participate
: This study has been approved by the Ethical Review Board, Pakistan Institute of Medical Sciences, Shaheed Zulfiqar Ali Bhutto Medical University in accordance with the Helsinki Declaration (Reference no. F.1–1/2015/ERB/SZABMU). Written informed consent has been obtained from the participants prior to data collection process and, the data were anonymized before analysis.
: Not applicable.
: The authors declare that they have no competing interests.