About: http://webisa.webdatacommons.org/268861935

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	Only days in which there was information as to whether the symptom was present or absent were included in denominators [10].
http://www.w3.org/ns/prov#wasQuotedFrom	plos.org