Vitamin D deficiency during chronic obstructive pulmonary disease exacerbations
2012 ◽
Vol 156
(12)
◽
pp. 904
2012 ◽
Vol 156
(12)
◽
pp. 904
2017 ◽
Vol 12
(2)
◽
pp. 382-397
◽
2018 ◽
Vol 67
(1)
◽
pp. 17
2015 ◽
Vol 64
(2)
◽
pp. 353-357
◽
2018 ◽
Vol 175
◽
pp. 138-145
◽