For handicap reporting purposes, "equitable stroke control" provisions limit the number of strokes players may record for any hole, depending on their skill level.

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During that time, 15% of patients taking Vytorin and 18% of patients in the control group had a heart attack, stroke, stent procedure, or death from cardiac causes.

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Because of the data already being collected about these people, the study allowed Saczynski's group to control for heart disease, heart attack, stroke, smoking, alcohol use and other factors that could have influenced dementia.

CNN: STORY HIGHLIGHTS

In the seconds before a stroke, duffers' eyes tend to dart around without purpose or function while elite players control their gaze.

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"There's only so much swelling brain can tolerate until there's pressure on the nerves that control breathing and circulation, " said Dr. Roger Bonomo, director of stroke care at Lenox Hill Hospital in New York.

CNN: STORY HIGHLIGHTS

The researchers were unable to control for all socio-economic factors and all of the patients in the study had recently suffered a stroke.

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