Funding for this research was provided by:
an Intramural Research Grant for Neurological and Psychiatric Disorders of the NCNP (30-9, 2-5, 2-5)
an Intramural Research Grant for Neurological and Psychiatric Disorders of the NCNP (2-6)
Japan Agency for Medical Research and Development (JP20ek0109490h0001)
Joint Usage and Joint Research Programs of the Institute of Advanced Medical Sciences, Tokushima University (2020, 2R19)
Received: 3 January 2021
Accepted: 13 June 2021
First Online: 24 June 2021
: All clinical information and materials used in the present study were obtained for diagnostic purposes with written informed consent. The study was approved by the Ethics Committee of the National Center of Neurology and Psychiatry (NCNP).
: Not applicable.
: The authors declare that they have no competing interests.