About: http://webisa.webdatacommons.org/111278440

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	Unfortunately, limitations of current photosensitizers, such as toxicity, inability to treat deeply situated cancers, cutaneous photosensitivity, and water insolubility prevent the widespread use of PDT to date.
http://www.w3.org/ns/prov#wasQuotedFrom	ndsu.edu