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.
Cost of illness and economic evaluation in rare diseases. LÃ³pez-Bastida J(1), Oliva-Moreno J. (1)Canary Islands Health Service, Santa Cruz de Tenerife, 38004, Spain. Rare diseases are a major cause of morbidity and mortality in high income countries and have major repercussions on individuals and health care systems.