<http://webisa.webdatacommons.org/211162059> <http://www.w3.org/ns/prov#wasQuotedFrom> <kbtx.com> . <http://webisa.webdatacommons.org/prov/29316552> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/211162059> . <http://webisa.webdatacommons.org/211162059> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/180523145> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/211162059> . <http://webisa.webdatacommons.org/prov/21359770> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/211162059> . <http://webisa.webdatacommons.org/211162059> <http://www.w3.org/ns/prov#value> "They may be referred by the hospital, cardiologists, pulmonologists, primary care doctors and other specialists." .