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This product calibration device for
Turtle neck syndrome patients.
In addition, when you do other things you can wear it.
Unlike other medical equipment and exterior design has smooth.
The products are mainly used the computer a person or students that will be suitable for white-collar workers.
Cheongju University
Cheongju-si, South Korea
Kim Dongha professor
Jo Sungbae professor
Cheongju University
Cheongju-si, South Korea