About: http://webisa.webdatacommons.org/330101067

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	One limitation is the study's nonrandomized design, which makes it unclear if the motivation to stop using alcohol, tobacco, and other drugs was similar in the groups.
http://www.w3.org/ns/prov#wasQuotedFrom	lww.com