Narod SA. Tamoxifen ChemopreventionâEnd of the Road?. JAMA Oncol. 2015;1(8):1033â1034. doi:10.1001/jamaoncol.2015.2247. Download citation file:
About Rare Diseases. A rare disease is defined by the European Union as one that affects less than 5 in 10,000 of the general population. There are between 6,000 and 8,000 known rare diseases. Around five new rare diseases are described in medical literature each week.
n. A disease, such as rickets or scurvy, that is caused by a dietary deficiency of specific nutrients, especially a vitamin or mineral. The disease may stem from insufficient intake, digestion, absorption, or utilization of a nutrient.eficiency disease. n. 1. (Pathology) med any condition, such as pellagra, beriberi, or scurvy, produced by a lack of vitamins or other essential substances. Compare avitaminosis. 2. (Botany) botany any disease caused by lack of essential minerals.