Smoking Calculator
Learn how smoking cause productive cough
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↓ Persistent irritation of bronchial mucosal ↓ Hypersecretion of bronchial mucous gland ↓ 1. Hypertrophy of the mucous gland 2. Increased number of goblet cells ↓ Increase in mucous production ↓ Regular expectoration of sputum ↓ Productive cough | |
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