Doctors have known for years that the incidence of deadly liver cancer is on the rise, but what is causing that trend has remained a mystery.

In the October issue of Mayo Clinic Proceedings, a group of Mayo Clinic physicians and bioethicists analyzed whether these genetic tests cause patients to experience excessive worry about developing diseases.

Mayo Clinic has identified a new benefit of social media and online networking: a novel way to study rare diseases.

To: NATIONAL EDITORS Contact: John Murphy of Mayo Clinic, +1-507-284-5005 (days), +1- 507-284-2511 (evenings), newsbureau@mayo.edu ROCHESTER, Minn., July 8 /PRNewswire-USNewswire/ -- A great deal of scientific evidence shows that cholesterol-reducing medications known as statins can help prevent coronary artery disease.

To: NATIONAL EDITORS Contact: John Murphy of Mayo Clinic, +1-507-284-5005 (days), +1- 507-284-2511 (evenings), newsbureau@mayo.edu ROCHESTER, Minn., Jan.