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Fig. 1. Scheme of the treatment protocol. One cycle was lasted a total of 6 minutes and 30 seconds, including 3 minutes and 30 seconds of cooling phase and 3 minutes of warming phase. Total of 10 cycles was performed. Patients rested for 5 minutes after five cycles of treat. The treatment was performed for a total of 1 hour and 10 minutes at 1 day.
Korean J Pain 2021;34:427~436
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