About: http://webisa.webdatacommons.org/38219612

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	The main etiological factors of POF [3],[5],[7],[8] are trauma and chronic irritation, particularly from subgingival plaque and calculus.
http://www.w3.org/ns/prov#wasQuotedFrom	jisppd.com