PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Causes, incidence, and risk factors: The main problem in achalasia is a failure of the a muscular ring where the esophagus and stomach come together (lower esophageal sphincter) to relax during swallowing.Another part of the disorder is a lack of nerve stimulation to the muscles of the esophagus.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wdhospital.com