Funding for this research was provided by:
Department of Science and Technology ,New Delhi ,India (SR/WOS A/LS-1040/2014)
Received: 6 June 2019
Accepted: 1 July 2019
First Online: 17 July 2019
Ethics approval and consent to participate
: The study protocol was approved by the Institute of Ethics Committee for Human Studies, NIMHANS, Bangalore, India (Item No. III, Sl.No.3.02, Basic Sciences). Written informed consent was obtained from all the participants.
: Not applicable.
: The authors declare that they have no competing interests.