2000, Immediate and delayed effects of treatment at the Dead Sea in patients with psoriatic arthritis 9. März 2020 Elkayam O, Ophir J, Brener S, Paran D, Wigler I, Efron D, Even-Paz Z, Politi Y, Yaron M. Rheumatol Int. 2000;19(3):77-82 https://www.ncbi.nlm.nih.gov/pubmed/10776684