Philip H Quanjer emeritus professor, Irene Steenbruggen clinical physiologist, Jan Willem van den Berg chest physician
Quanjer P H, Steenbruggen I, van den Berg J W.
Diagnosis of airways obstruction should be based on symptoms and an FEV1/FVC ratio below the lower limit of normal
BMJ 2016; 352 :i397
doi:10.1136/bmj.i397