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. 2016 Jul 18;2016(7):CD006120. doi: 10.1002/14651858.CD006120.pub4
Date Event Description
8 June 2020 Amended Most recent search date 3 April 2020. One new study and one ongoing study has been identified but the new information is unlikely to change the review findings (see Studies awaiting classification). The conclusions of this Cochrane Review are therefore still considered up to date.