Carbon dioxide-rich water bathing enhances collateral blood flow in ischemic hindlimb via mobilization of endothelial progenitor cells and activation of NO-cGMP system

Hidekazu I. et . al ( 2005)
Circulation. 2005 Mar 29;111(12):1523-9

https://www.ncbi.nlm.nih.gov/pubmed/15795362