Send the following on WhatsApp
Continue to ChatEffects of different frequencies of conventional transcutaneous electrical nerve stimulation on pressure pain threshold and tolerance - https://avesis.hacettepe.edu.tr/publication/details/a10e934a-75ab-4fa0-a76c-0b4db3bbaf2f/effects-of-different-frequencies-of-conventional-transcutaneous-electrical-nerve-stimulation-on-pressure-pain-threshold-and-tolerance