0. 0. Pellagra results from the deficiency of niacin (vitamin B3). It was first described by Don Casal, a Spanish court physician in the 1700s, where thickened skin was noted in peasants. However, it was not until the 1900s that the cause and treatment of pellagra was determined.Niacin can be derived from:ellagra results from the deficiency of niacin (vitamin B3). It was first described by Don Casal, a Spanish court physician in the 1700s, where thickened skin was noted in peasants. However, it was not until the 1900s that the cause and treatment of pellagra was determined. Niacin can be derived from:
Business plan template. Our free business plan template is part of a kit put together to help you define who you are, describe your business, and document how you will be profitable.
20 Unforgettable Moments in Space Exploration. Business Plans: A Step-by-Step Guide. This guide to writing a business plan will outline the most important parts and what should be included in an effective plan. A business plan is a written description of your business's future, a document that tells what you plan to do and how you plan to do it. If you jot down a paragraph on the back of an envelope describing your business strategy, you've written a plan, or at least the germ of a plan.