About: http://webisa.webdatacommons.org/115987833

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	tracheostomy: a surgical operation that creates an opening into the trachea with a tube inserted to provide a passage for air; performed when the pharynx is obstructed by edema or cancer or other causes
http://www.w3.org/ns/prov#wasQuotedFrom	crosstips.org