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Han S, Middleton P, Shepherd E, Van Ryswyk E, Crowther CA.Han S, et al. Among authors: shepherd e.Cochrane Database Syst Rev. 2017 Feb 25;2(2):CD009275. doi: 10.1002/14651858.CD009275.pub3.Cochrane Database Syst Rev. 2017.PMID: 28236296Free PMC article.Review.
Shepherd E, Gomersall JC, Tieu J, Han S, Crowther CA, Middleton P.Shepherd E, et al.Cochrane Database Syst Rev. 2017 Nov 13;11(11):CD010443. doi: 10.1002/14651858.CD010443.pub3.Cochrane Database Syst Rev. 2017.PMID: 29129039Free PMC article.Review.