To acknowledge this checklist in your methods, please state "We used the PRISMA-P
when writing our report [citation]". Then cite this checklist as Moher D, Shamseer L, Clarke M, Ghersi D, Liberati A, Petticrew M, Shekelle P, Stewart LA. Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) 2015 statement. Syst Rev. 2015;4(1):1..