Funding for this research was provided by:
KAKENHI (JP24590556 and JP15K09345)
Japan Agency for Medical Research and Development
Project of Establishing Medical Research Base Networks against Infectious Diseases in Okinawa
Received: 25 April 2017
Accepted: 10 July 2017
First Online: 17 July 2017
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee of Kawasaki Medical School under the approval number of 1422–3. All subjects gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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