About: http://webisa.webdatacommons.org/217247327

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	However, PCA is a relatively safe means for administering narcotic analgesics, at least in theory, because if the patient self administers too much analgesic, the patient usually becomes drowsy and falls asleep.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com