Mineral water and spas in Portugal

Anthony V.BenedettoD.O., FACPabcLarry E.MillikanM.D
Clinics in Dermatology
Volume 14, Issue 6, November–December 1996, Pages 637-639

https://www.sciencedirect.com/science/article/pii/S0738081X96000971?via%3Dihub