The Anticoagulation and Risk Factors in Atrial Fibrillation (ATRIA) Study demonstrated that a 5-point risk stratification scheme (ie, anemia, severe renal disease, age, prior bleeding, and hypertension) was effective in quantifying the risk for major hemorrhage among patients with AF receiving warfarin.
Erta Ale (or Ertale or Irta'ale) is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia. It is situated in the Afar Depression, a badland desert area spanning the border with Eritrea. Erta Ale is the most active volcano in Ethiopia.
Amsterdam is located in the western Netherlands, in the province of North Holland. The river Amstel terminates in the city centre and connects to a large number of canals that eventually terminate in the IJ. Amsterdam is situated 2 metres below sea level.The surrounding land is flat as it is formed of large polders.hips sailed from Amsterdam to the Baltic Sea, North America, and Africa, as well as present-day Indonesia, India, Sri Lanka, and Brazil, forming the basis of a worldwide trading network. Amsterdam's merchants had the largest share in both the Dutch East India Company and the Dutch West India Company.