@misc{indiciaed843e381dffc, title = {Diagnosing obstructive lung disease. Why is differentiating COPD from asthma important?}, author = {D Subramanian and K K Guntupalli}, year = {1994}, url = {https://pubmed.ncbi.nlm.nih.gov/8202424/}, note = {Source identifier: 8202424} }