ABC News. 2011-02-23. Retrieved 2016-07-19. ↑ Robinson, Narda G. (2013), “Complementary and Alternative Veterinary Medicine: Laser Therapy”, The Merck Veterinary Manual, 11th edition. ↑ McKenzie, Brennen (2016), “The Laser Craze: What Is the Evidence for Low-level Laser Therapy?”