It is a vital part of the immune system and helps to fight off infections.
Atchison, Hefner and Rice all started with crossword puzzles mostly just to fight off boredom.
The strong broad spectrum antibiotics needed to fight off such infections are also astronomical in price.
It said some nail scrapings suggest she may have tried to fight off her attacker.
But eyewitnesses said a security guard was killed while trying to fight off the bomber.
Mr Obama has struggled to fight off new restrictions, like Arizona's harsh state law on immigration.
The immune system's ability to fight off the body's invaders has long been recognized against infectious disease.
It had to recall its cholesterol drug Baycol, in 2001, to fight off a bevy of lawsuits.
Yes, they'll have to fight off challenges, but at least they'll do so from a standing position.
It also needs to fight off competition from emerging low-cost carriers and rival All Nippon Airways (ANA).
Now, though, the ABS is trying to fight off irrelevance, competition and the effects of years of misguided policies.
Now global capitalism is having to fight off an internal malfunction that is proving to be just as corrosive.
Giving a computer the ability to fight off infectious agents sounds odd, but it makes a lot of sense.
And others were weighing how hard it would be to fight off a conservative challenger in their next primary.
President Mikheil Saakashvili's website had to be moved to an American server better able to fight off the attack.
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The immune system produces histamine to fight off the intruder and that chemical causes the symptoms that make people miserable.
At the 1976 Republican convention, President Ford was able to fight off a challenge from former California governor Ronald Reagan.
The inquest was told Ms Creegan had bruising on her wrists, suggesting she had attempted to fight off Mr Didier.
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The central bank has steadily raised short-term interest rates over the past year and a half to fight off inflation.
Mr Correa has, since he started campaigning for the presidency, had to fight off allegations that he is President Chavez's puppet.
But did MLS have to fight off hoards of international broadcasters ready to toss hundreds of millions of dollars their way?
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Aamir's father Iqbal Ahmad told how he and his wife, Parveen, were also injured while trying to fight off two attackers.
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In the 19th century, the church allied itself with the conservative movement, hoping in vain to fight off liberal measures curbing its privileges.
In particular he's trying to fight off the "Volcker rule", named after Paul Volcker, the former chairman of the Federal Reserve.
It may be that we are all huddled together around the fire and trying to fight off that sense of the inevitable.
The surgery transplants a healthy thymus into the body, providing it with the ability to manufacture sufficient T-Cells to fight off infections.
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Since then, Landis has tried to fight off suspicions that in winning the Tour last month he cheated his way to victory.
The Taliban has in the past week repeatedly dismissed allied warnings of the coming operation, and vowed to fight off coalition forces.
They had to fight off sturdy opposition in their parties' ranks and they (especially Mr Fischer) put their jobs on the line.
Mr Stoiber is trying to fight off all these challenges at once.
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