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Even if direct validation isnt possible, we build our models and assumptions on the latest research, typically using reference articles to approximate reality

COPD is a heterogeneous condition, with between-individual variation in the nature and severity of airway inflammation [42] and the inflammatory cell profile also varies in large and small airways and with severity of COPD, hence careful appraisal is needed [43]

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Nicotine in a Cigarette vs Vape: Key Differences Understanding nicotine in a cigarette vs vape isnt just about numbersits also about how nicotine is delivered and absorbed