The Medical Library's aim is to promote individual responsibility for health and does not provide or offer medical advice. Accordingly, we seek to provide current and authoritative sources of information. We do not, however, offer all available references on a topic. Because medical information is changing, we may not always be able to provide the very latest developments. Materials provided offer the view of individual authors and do not necessarily represent or imply approval or recommendation by Adventist Medical Center or by your own physician or healthcare provider. Questions or concerns about your unique medical condition can only be answered by your physician or healthcare provider.