About: http://webisa.webdatacommons.org/227101388

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	Since neck pain has many causes, and a number of factors such as age, sex, occupation, and cigarette smoking effect its occurrence,[2] it is difficult to compare the results obtained from research done on differing study populations.
http://www.w3.org/ns/prov#wasQuotedFrom	digital-doc.com