Funding for this research was provided by:
National Research Council of Thailand (00005/2012)
Received: 25 May 2019
Accepted: 25 October 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: This project was approved by Central Research Ethics Committee of Thailand, the ethics committee of Prasat Neurological Institute, the ethics committee of Songkhla Rajanagarindra Psychiatric Hospital, and the independent research committee of Faculty of Medicine, Chiang Mai University. All participants were informed about the study and provided informed consent.
: Not applicable.
: The authors declare that they have no competing interests.