Polycythemia Vera. This slow-developing disease occurs when bone marrow produces too many red blood cells, which can lead to thickening of the blood. The condition is thought to be caused in part by a mutation in a gene called JAK2, which regulates the production of various types of blood cells, keeping them in proper balance.
Hilly landscapes and cathedrals dominate much of Andalusia, Spain. The Iberian Peninsula, predominately occupied by the European countries of Spain and Portugal, lies in southwestern Europe. With an area of 582,000 square kilometers, its is the third largest peninsula in the continent.
On the Mediterranean coast of Spain is Gibraltar (a British territory). Spain is a country located in the southwest of Europe, it is on the Iberian Peninsula, Portugal is to the west, Atlantic Ocean to the north, France to the northeast, the Mediterranean Sea to the east.e generally consider that Spain is in Europe. The Canary Islands, off Africa are a Spanish Province but are in the middle of the Atlantic Ocean. The Autonomous Cities of â¦ Ceuta and Melilla located on the African continent and surrounded by Morocco were part of the Spanish province of Cadiz until 1995.