Open letter: the need to change the method for defining mild airway obstruction.
Quanjer
Philip H
PH
Enright
Paul L
PL
Miller
Martin R
MR
Stocks
Janet
J
Ruppel
Gregg
G
Swanney
Maureen P
MP
Crapo
Robert O
RO
Pedersen
Ole F
OF
Falaschetti
Emanuela
E
Schouten
Jan P
JP
D000367:Age Factors; D000402:Airway Obstruction / Q000175:diagnosis*; D005541:Forced Expiratory Volume; D006801:Humans; D008875:Middle Aged; D017410:Practice Guidelines as Topic / Q000592:standards; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis; D012016:Reference Values; D014797:Vital Capacity