The major risk factor for chronic bronchitis is
A. dust in the air.
B. previous allergies.
C. family history.
D. cigarette smoking.
The major risk factor for chronic bronchitis is cigarette smoking.
Question
Asked 10/10/2010 9:08:31 PM
Updated 1/1/2019 5:53:35 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by
Masamune [1/1/2019 5:53:34 AM], Confirmed by
Masamune [1/1/2019 5:53:35 AM]
Rating
There are no new answers.