About: http://webisa.webdatacommons.org/13938376

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 number needed is a function of both the expected rate of repetition (that is, that in the control group) and the size of the difference.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca