1997, Effect of Carbon Dioxide-Enriched Water and Fresh Water on the Cutaneuos Microcirculation and Oxygen Tension in the Skin of the Foot

Hartmann BR, Bassenge E, Pittler M

Angiology 1997;48:337-343 doi: 10.1177/000331979704800406

https://pubmed.ncbi.nlm.nih.gov/9112881/