Original Article
The relationship between serum levels of vitamin D with asthma and its symptom severity: A case–control study
Rasoul Nasiri Kalmarzia, A. Zamanib, A. Fathallahpourd, E. Ghaderic, Ramesh Rahehaghd, W. Kootib,
Corresponding author
a Cellular & Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
b Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
c Social Determinants of Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
d Kurdistan University of Medical Sciences, Sanandaj, Iran
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