2009, Observed deaths during the spa treatment not associated with treatment itself: A case series in a spa hospital
Muharrem U., et.al January 2009 Turkiye Klinikleri Journal of Medical Sciences 29(4):922-926 https://www.researchgate.net/publication/288690899_Observed_deaths_during_the_spa_treatment_not_associated_with_treatment_itself_A_case_series_in_a_spa_hospital
1998, Wie effektiv ist die Kur?- Eine systematische Übersicht randomisierter Studien
Ernst E., Pittler H. Deutsche Med. Wochenschrift 123 (1998), 273-278
1992, Controlled trial of balneotherapy in treatment of low back pain.
Konrad K Annals of the rheumatic diseases, (1992 Jun) Vol. 51, No. 6, pp. 820-2. Journal code: 0372355. ISSN: 0003-4967. L-ISSN: 0003-4967. Report No.: PMC-PMC1004758. https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1%3ASTN%3A280%3ABy2A3Mzht1U%3D&md5=e1f4b84c49f20fda18f278a1a1888167
1995, Effectiveness of spa therapy in chronic low back pain: a randomized clinical trial
Constant F The Journal of rheumatology, (1995 Jul) Vol. 22, No. 7, pp. 1315-20. Journal code: 7501984. ISSN: 0315-162X. L-ISSN: 0315-162X https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1%3ASTN%3A280%3ABymD2MjivV0%3D&md5=e51c52f1affb087d6423e310e9f595ba
1991, Spa treatment in arthritis: a rheumatologist’s view
Fam A G The Journal of rheumatology, (1991 Dec) Vol. 18, No. 12, pp. 1775-7. Journal code: 7501984. ISSN: 0315-162X. L-ISSN: 0315-162X. https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1%3ASTN%3A280%3ABy2C2sjislw%3D&md5=eb2609beea2463bb61bf2230076a521f
1991, Spa therapy in arthritis: a trialist’s view
Bell M J The Journal of rheumatology, (1991 Dec) Vol. 18, No. 12, pp. 1778-9. Journal code: 7501984. ISSN: 0315-162X. L-ISSN: 0315-162X.. https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1%3ASTN%3A280%3ABy2C2sjisl0%3D&md5=5116529bfd143a8456a70fa129f1956a
1995, Spa therapy for gonarthrosis: a prospective study.
Wigler I Rheumatology international, (1995) Vol. 15, No. 2, pp. 65-8. Journal code: 8206885. ISSN: 0172-8172. L-ISSN: 0172-8172. https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=npg&version=1.0&coi=1%3ASTN%3A280%3ABymD2szjtFc%3D&md5=0a91a76a33a0e4060d78f2efbb4e0d9e
2000, Long-term efficacy of radon spa therapy in rheumatoid arthritis–a randomized, sham-controlled study and follow-up
A. Franke, L. Reiner, H. G. Pratzel, T. Franke, K. L. Resch Rheumatology, Volume 39, Issue 8, August 2000, Pages 894–902 https://academic.oup.com/rheumatology/article/39/8/894/1784172
1987, Hormonal, beta-endorphin and renin activity changes in man during partial immersion, as a therapeutic method, in water at 38 degrees C
Digiesi V, Cerchiai G, Forni S, Baldi E, Masi F, Giannotti P. Minerva Med. 1987 Feb 15;78(3):135-9 https://www.ncbi.nlm.nih.gov/pubmed/2950339
1994, Biophysiologic aspects of hydrotherapy
Becker BE J Back Musculoskelet Rehabil. 1994 Jan 1;4(4):255-64 https://www.ncbi.nlm.nih.gov/pubmed/24572126