<ref>[http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD010789.pub2/full Costello et al. Whole-body cryotherapy (extreme cold air exposure) for preventing and treating muscle soreness after exercise in adults. Cochrane Database Syst Rev. 2015 Sep]</ref>. | <ref>[http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD010789.pub2/full Costello et al. Whole-body cryotherapy (extreme cold air exposure) for preventing and treating muscle soreness after exercise in adults. Cochrane Database Syst Rev. 2015 Sep]</ref>. |