The Health Sciences Library at St. Mary’s Regional Medical Center offers public access to a wide spectrum of medical information. We do not give medical advice or interpretation. Information we provide does not imply recommendation or endorsement. This information is not a substitute for consultation with a health professional. Some material may contain information that is the opinion of the author but not necessarily of your doctor or of this hospital. May we remind you that some information given to you may not be relevant to your specific situation?