AU - Haykır, Nahide AU - Akın, Yasemin AU - Tutar, Engin TI - Association Between Vitamin D Status and Lower Respiratory Tract Infection in Children Under Five Years of Age PT - Journal Article DP - 2026 TA - South Clin Ist Euras PG - 224-229 VI - 37 IP - 3 AID - 10.14744/scie.2026.28445 [doi] 4100 - https://dx.doi.org/10.14744/scie.2026.28445 SO - SOUTHERN CLINICS OF ISTANBUL EURASIA, 2026 37(3):224