The role of mineral elements and other chemical compounds used in balneology: data from double-blind randomized clinical trials.

Morer C1,2, Roques CF3, Françon A4, Forestier R4, Maraver F
Int J Biometeorol. 2017 Dec;61(12):2159-2173. doi: 10.1007/s00484-017-1421-2. Epub 2017 Aug 28

https://www.ncbi.nlm.nih.gov/pubmed/28849535