@article{doi:10.14744/hnhj.2019.16769,
author = {Boğa, Aysun and Şahin, Ebru and Karacı, Mehmet and Yanar Ayanoğlu, Çiğdem and Kaya, Yusuf and Dağ, Yasin},
title = {The Effect of Vitamin D Levels on the Frequency of Upper Respiratory Tract Infection in Children},
journal = {Haydarpasa Numune Med J},
volume = {62},
number = {1},
pages = {93-96},
year = {2022},
doi = {10.14744/hnhj.2019.16769},
note ={doi: 10.14744/hnhj.2019.16769},

URL = {https://dx.doi.org/10.14744/hnhj.2019.16769},
eprint = {https://dx.doi.org/10.14744/hnhj.2019.16769}
}