About: http://webisa.webdatacommons.org/124425952

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	During weeks 4???6 samples were collected twice per week, with at least 48 hours separating tests, e.g. Tuesday and Fridays or Mondays and Thursdays.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca