2. Primary Care Clinical Practice Guidelines - Index
Introduction to using clinical guidelines, clinical content listing, and other patient care resources. Primary Care Clinical Practice Guidelines Clinical resources for. Users' Guides to the Medical Literature.
http://medicine.ucsf.edu/resources/guidelines/

3. An Introduction to Depression - Psych Central
And sometimes, persistent physical symptoms that do not respond to traditional treatments such as headaches, digestive disorders, and chronic pain may be signs of a depressive illness. What differentiates occasionally feeling down for a few days...
http://psychcentral.com/disorders/depression/

4. Heartburn - MayoClinic.com
Heartburn Comprehensive overview covers treatment, symptoms, causes of this common digestive problem. The symptoms of heartburn are hard to ignore. | Health Information. | Education and Research. When to seek medical advice.
http://www.mayoclinic.com/health/heartburn-gerd/DS00095