Illustrated Guide to Type 1 Diabetes Death of Beta Cells WebMD Medical Reference MEDICAL REVIEW: Reviewed by Brunilda Nazario, MD, June 2007 SOURCE DOCUMENTATION: ACP Medicine, May 2007. LEGAL DISCLAIMER: This tool is for general information purposes only and does not address individual circumstances. It may not be right for you and should not be relied upon in making decisions about you health. Always consult your doctor for medical advice.