Q. Most common cause of pulmonary hypertension?
A. Idiopathic pulmonary artery hypertension
B. Left heart disease
C. COPD
D. CTEPH
Answer: B. Left heart disease
A. Idiopathic pulmonary artery hypertension
B. Left heart disease
C. COPD
D. CTEPH
Answer: B. Left heart disease
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