Cite
HARVARD Citation
Kammoun, R. et al. (2018). Defining and grading an obstructive ventilatory defect (OVD): 'FEV1/FVC lower limit of normal (LLN) vs. Z-score' and 'FEV1 percentage predicted (%pred) vs. Z-score'. Libyan journal of medicine. 13 (1), p. . [Online].