A commentary on ‘The efficacy and safety of hydrotherapy in patients with knee osteoarthritis: a meta-analysis of randomized controlled trials’

aThe Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China bDepartment of Osteology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article. Published online ■ ■ *Corresponding author. Address: Second Affiliated Hospital, Zhejiang Chinese Medical University Address:No.318 Chaowang Road, Gongshu District, Hangzhou, Zhejiang Province. E-mail address: [email protected] (K. Liu). This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0/