American teens face vaping dangers. Brianne Cullen, a 17-year-old, got popcorn lung. Vaping caused her breathing issues. Doctors say it is due to chemicals in e-cigarettes. Popcorn lung is a ...

In Nevada, 17-year-old Brianne Cullen experienced a frightening episode that began with shortness of breath during cheerleading practice. When she called her mother in distress, neither could have ...

A clinical trial is defined by NIH as a research study in which one or more human subjects are prospectively assigned to one or more interventions (which may include placebo or other control) to ...