Vitamin D and COPD: seasonal variation is important.
Ampikaipakan
Sundari N
SN
Hughes
David A
DA
Hughes
Jackie C
JC
Amen
Talar
T
Bentham
Graham
G
Wilson
Andrew M
AM
D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D029424:Pulmonary Disease, Chronic Obstructive / Q000209:etiology*; D012621:Seasons; D014807:Vitamin D / Q000097:blood; D014808:Vitamin D Deficiency / Q000150:complications*
D014807:Vitamin D