Increased vitamin D serum levels correlate with clinical improvement of rheumatic diseases after Dead Sea climatotherapy.

Harari M1, Dramsdahl E, Shany S, Baumfeld Y, Ingber A, Novack V, Sukenik S
Isr Med Assoc J. 2011 Apr;13(4):212-5.

https://www.ncbi.nlm.nih.gov/pubmed/21598808