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.
Geographic. Arabian Peninsula is located in southwest Asia and is surrounded by the Red Sea on the west, the Arabian Sea on the south, and the Persian Gulf on the east.The Peninsula includes Saudi Arabia, Yemen, Oman, the United Arab Emirate, Bahrain, Qatar, and Kuwait.eographic. Arabian Peninsula is located in southwest Asia and is surrounded by the Red Sea on the west, the Arabian Sea on the south, and the Persian Gulf on the east.