RT Book, Section A1 Starkey, Chad SR Print(0) ID 1163449856 T1 Low-Level Laser Therapy T2 Therapeutic Modalities, 4e YR 2013 FD 2013 PB F. A. Davis Company PP New York, NY SN 9780803625938 LK fadavisat.mhmedical.com/content.aspx?aid=1163449856 RD 2024/04/18 AB The light spectrum encompasses ultraviolet, visible, and infrared energy. Although some thermal effects may be obtained from these modalities, the primary benefits are derived from photochemical effects.