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Original article (peer-reviewed)

Journal BMJ Open
Volume (Issue) 8(4)
Page(s) e020992 - e020992
Title of proceedings BMJ Open
DOI 10.1136/bmjopen-2017-020992

Open Access

URL https://bmjopen.bmj.com/content/8/4/e020992
Type of Open Access Publisher (Gold Open Access)

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