1. Capturing impressions of pedestrian landscapes used for healing purposes with decision tree learning;Naderia;Landscape and Urban Planning,2005
2. http://www.natural-wonder-pets.com/do-wild-animals-heal-themselves.html
3. http://en.wikipedia.org/wiki/Wound_licking
4. Origin, structure, and biological activities of peroxidases in human saliva;Ihalin;Archives of Biochemistry and Biophysics,2006
5. Defensins in saliva and the salivary glands;Abiko;Medical Electron Microscopy,2003