1. Biological effects of ultrasound;Baldes;Am J Phys Med,1958
2. Therapeutic heat;Lehmann,1982
3. Bioeffects of ultrasound;Dunn,1982
4. Rate of regeneration of amphibian peripheral nerves at different temperatures;Lubinska;Acta Biol Exp,1950
5. Pain threshold measurements after therapeutic application of ultrasound, microwaves and infrared;Lehmann;Arch Phys Med Rehabil,1958