About: http://webisa.webdatacommons.org/246725074

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	This is not the first time that the infectious nature of periodontal diseases has been put into question and is a good example of the vicious cycle of ???lessons learned and unlearned??? in periodontal microbiology.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca