Chronic Respiratory Symptoms with Normal Spirometry A Reliable Clinical Entity?

AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE

AMER THORACIC SOC

1. Medical Research Council [G1001365, G1001372, G0800570] Funding Source: Medline
2. Department of Health [RP-PG-0109-10056] Funding Source: Medline
3. MRC [G1001365, G1001372, G0800570] Funding Source: UKRI
4. National Institute for Health Research [NF-SI-0510-10270, RP-PG-0109-10056, NF-SI-0513-10077] Funding Source: researchfish