Does vitamin D deficiency worsen the clinical and functional parameters of stable chronic obstructive pulmonary disease patients?

Abd Elnaby, Esmat A. ; Abd Elnaiem, Samah S. ; Mostafa, Amira I. ; Sabry, Dina ; Haswa, Mohamed K.

The Egyptian Journal of Bronchology, 2019-12, Vol.13 (5), p.584-590 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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