How does therapy help in the treatment of depression? A. Changes negative thinking patterns B. Alters the chemical balance in th
e brain C. Disrupts damaging electrical signals in the brain D. Raises levels of serotonin in the brain Please select the best answer from the choices provided. A B C D.
Mitral regurgitation is a disorder when the mitral valve if the left side of the heart does not close properly. Backflow means that the valve is leaking and is not completely closed.
