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Apr 18, 2016 - Vitamin E Deficiency and Nutritional Disorders - Learn about from the Merck Manuals - Medical Professional Version.The Merck Manual Professional Version provides health care practitioners and students with practical explanations of what to do to diagnose and treat Brought to you by Merck & Co, Inc., Rahway, NJ, USA (known as MSD outside the US and Canada) — dedicated to using leading-edge science to save and improve lives