About: http://webisa.webdatacommons.org/270506752

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	To facilitate consistency and reproducibility of coding, definitions including specific words and phrases were provided for each variable.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com