Akhmedova Dilbar Yusufzhanovna, and Kayumova Amira Temurovna. “The Importance of Vitamin D in Acute Bronchitis in Children Against the Background of Ricketis”. International Journal of Pediatrics and Genetics , vol. 2, no. 8, Aug. 2024, pp. 18-22, https://medicaljournals.eu/index.php/IJPG/article/view/857.