About: http://webisa.webdatacommons.org/90267994

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	In brief, the Onset study is a case-crossover study nested in a large population based case-control study of causes of myocardial infarction???the Stockholm Heart Epidemiology Program (SHEEP).
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca