1.
Sopo SM, Cerchiara G, Bersani G, Monaco S, Romano A, Poscia A. The unpredictability of seasonal variations in serum vitamin D levels in children with asthma and/or rhinitis. Allergol Immunopathol. 2019;47(5):411-416. Accessed June 2, 2026. https://www.all-imm.com/index.php/aei/article/view/283