Pulmonary arterial hypertension is caused by narrowing of the blood vessels in the lungs. Learn how it happens, including ...

Comparison of laparoscopic radiofrequency ablation with percutaneous radiofrequency ablation in the treatment of chronic hepatitis B-related hepatocellular carcinoma involving specific sites: A ...

You can remove mucus from the lungs using natural remedies, controlled coughing, and chest physical therapy. If these natural techniques don't help, you may need over-the-counter or prescription ...