Acute Bronchitis
- Learn how this type of infection affects the lungs. Includes causes, treatment, how long it lasts, and how to avoid getting it.
- http://familydoctor.org/677.xml

Bronchitis
- Explains the different types of this respiratory illness. Includes causes, symptoms, diagnosis, and what medicines are prescribed.
- http://www.merck.com/mmhe/sec04/ch041/ch041a.html

Mayo Clinic: Bronchitis
- Learn how this infection develops, often after a cold. Includes signs and symptoms, causes, risk factors, when to see the doctor, treatment, and complications.
- http://www.mayoclinic.com/health/bronchitis/DS00031