About: http://webisa.webdatacommons.org/227648035

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	It really depends on what they are being used for, they are normally worn at night to treat conditions such as apnea.
http://www.w3.org/ns/prov#wasQuotedFrom	medschat.com