About: http://webisa.webdatacommons.org/132270380

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	When a beam of light is held against tissues, such as skin or mucous membranes, whether applied externally or internally, much of the light scatters through the tissues and illuminates the area beneath the skin and laterally.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com