Received: 26 June 2019
Accepted: 29 August 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: Study approval and consent were obtained from the Research Ethics Board of Health, the Kingdom of Bhutan’s office dedicated to the protection of human subjects. Reference No. REBH/Approval/2018/092.
: The Research Ethics Board of Health of the Kingdom of Bhutan provided the consent for publication and waived patient consent after insuring appropriate measures were taken to protect the patient’s privacy.
: The authors declare that they have no competing interests.