2020, Winter Exercise and Spelotherapy for Allergy and Asthma: A Randomized Controlled Clinical Trial.

J.Freidl, D. Huber, H.Braunschmid, C. Romodow, Chr. Pichler, R. Weisböck-Erdheim, M. Mayr & A.Hartl

J Clin Med 2020, Oct 9(10) 3311 doi: 10.3390/jcm9103311

(PMC free article)

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602599/