REFERENCES
- Grant, A. E.: Massage with ice (cryokinetics) in the treatment of painful conditions of the musculoskeletal system. Arch Phys Med 43: 233–238, 1964.
- Knapp, M. E.: Practical physical medicine and rehabilitation. Lecture 8. Low-frequency electric currents. Postgrad Med 41: A–113 (January) 1967.