About: http://webisa.webdatacommons.org/405547679

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 authors acknowledge that they could not calculate a total respondent denominator; it would be helpful for the reader to know whether there was a mechanism to prevent multiple submissions by the same respondent.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com