The selective nature of the drug makes it preferable to other stress agents such as adenosine, which are less selective and therefore cause more side-effects. Regadenoson was approved by the United States Food and Drug Administration on April 10, 2008 and is marketed by Astellas Pharma under the tradename Lexiscan.
Human capital flight, sometimes called brain drain, refers to the emigration of intelligent, well-educated individuals for better pay or conditions, causing their places of origin to lose skilled people, or brains..
drain verb (REMOVE LIQUID) C2 [ I or T ] If you drain something, you remove the liquid from it, usually by pouring it away or allowing it to flow away, and if something drains, liquid flows away or out of it: Drain the pasta thoroughly. We drained the pond and filled it with fresh water. Drain (off) any liquid that is left in the rice.