2. Genetic Factors for Smoking Boost Chronic Bronchitis Risk
Swedish study says it's first to quantify heritability of the disease

3. Study Links Snoring to Chronic Bronchitis
Reasons for the association are unknown, researchers say

4. Bronchitis  (Trust Mark: Doctor-Reviewed)
Bronchitis is an inflammation of the main air passages to the lungs. Bronchitis may be short-lived (acute) or chronic, meaning that it lasts a long time and often recurs. See also: Chronic obstructive pulmonary disease (COPD)• Reviewer: Benjamin Medoff, MD, Assistant Professor of Medicine, Harvard Medical School, Pulmonary and Critical Care Unit, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

5. Bronchitis  (Trust Mark: Doctor-Reviewed)
Bronchitis is an inflammation of the air passages between the nose and the lungs, including the windpipe or trachea and the larger air tubes of the lung that bring air in from the trachea (bronchi). Bronchitis can either be of brief duration (acut...• Author: Tish Davidson