Received: 20 June 2019
Accepted: 29 November 2019
First Online: 10 December 2019
Ethics approval and consent to participate
: The ethics approval has been taken by the Ethics and Review Committee of The Aga Khan University, Karachi, Pakistan, and a copy will be made available on the request of the editor of the journal.
: Consent has been sought by the patient, and the patient consent form will be made available on the request of the editor of the journal.
: The authors declare that they have no competing interests.