Find a problem that affects at least a billion people, the authors recommend.
The classification rules of Wheelchair Basketball state that athletes with a physical impairment that affects at least one leg are eligible to compete.
It affects at least one million Americans, causing extreme fatigue, muscle and joint pain, sleep problems, difficulty concentrating and other symptoms.
Gingrich affects, at times, the enthusiasm of an overgrown child, and I guess some people like that about him; not everyone's tastes are one's own.
The consequence of this invasion is gingivitis, or inflammation of the gums, a condition that affects at least 70 to 90 percent of adolescents worldwide.
In learning more about autism, a disorder that in some form affects at least 425,000 Americans under 18, scientists may also increase knowledge about language development, emotion, even friendship and love.
In 2011, the Institute of Medicine issued a comprehensive report on pain, with the statistic that acute and chronic pain affects at least a hundred and sixteen million adults in the United States.
Gulf war syndrome affects at least one-fourth of the 700,000 American troops who served in the 1991 effort to drive Iraq out of Kuwait, or 175,000 to 210,000 veterans in all, the report found.
The WHO has condemned the Vatican's views, saying: "These incorrect statements about condoms and HIV are dangerous when we are facing a global pandemic which has already killed more than 20 million people, and currently affects at least 42 million".
And it was not until 1993 that the agency gave Abbott permission to market Hytrin for its most lucrative purpose, the treatment of enlarged prostate, a condition that affects at least half of all men older than 60.
Coeliac disease - for which the only cure is complete avoidance of the gluten in wheat, rye, barley and oats - now affects at least one person in 100, but sensitivity to wheat is detectable in as many as one in five.
