Which of the following is a group of pulmonary disorders characterized by persistent or recurring obstruction of airflow that worsens with exertion?
a. Severe respiratory syndrome
b. Chronic obstructive pulmonary disease
c. Pulmonary distress syndrome
d. Lung membrane sequela
ANS: B
Health Professions
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Who is credited with introducing the bitewing radiograph?
A) F. W. McCormack B) H. R. Raper C) G. M. Fitzgerald D) C. E. Kells
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