@article{article0e8576a6,
title   = {Serum 25-hydroxyvitamin D levels in patients with Granulomatosis with Polyangiitis: association with respiratory infection},
author = {Perez, Mariana O. and Oliveira, Ricardo M. and Levy-Neto, Mauricio and Caparbo, Valeria F. and Pereira, Rosa M. R.},
year = {2017},
doi = {10.6061/clinics/2017(12)02},
journal   = {Clinics}
}