About: http://webisa.webdatacommons.org/51699653

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	They may be caused by anxiety, by loss of, or lack of sleep, by smoking, alcohol, and especially the use of caffeine and other stimulating drugs.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org