| http://www.w3.org/ns/prov#value | - The treatments were carried out in such a way that vacuum pad electrodes provided with a sponge pad having an intermediate level suction force were applied to the chest and back of the patients, and the frequency applied for the therapeutic treatment were varied in four steps, e.g. 50, 70, 100, and 150 Hz, for 10 minutes during the treatment.
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