Mr Morgan said his recovery was helped by a Stroke Association support group.
The pair shot seven-under-par 65s to lead by a stroke from a group which includes Raul Ballesteros, the nephew of Seve Ballesteros.
They hold a two-stroke advantage over a group of four players on 12 under that includes France's Raphael Jacquelin, and Chile's Felipe Aguilar.
Fellow Englishmen John Bickerton and David Griffiths are among a group of five players a stroke behind.
In the stroke rehabilitation arena, Jackson's group hopes to restore movement in people who have paralysis or partial paralysis in a limb.
However, in a subsequent analysis, where clinical investigators excluded three patients selected for the device group because they had a stroke before the device was implanted, the results were statistically significant.
WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure
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.
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.
Cink is looking for his first victory since the 2009 British Open, but he and Haas were just one shot ahead of a group of four players -- and another nine were a stroke further back, including former major winners Louis Oosthuizen, Angel Cabrera and Keegan Bradley plus ex-world No. 1 Lee Westwood.
Karen Owers had a stroke two years ago and uses the bus to get to a weekly support group.
Compared with those eating the low-fat diet, the extra-virgin-olive-oil group showed a 30% lower risk of having a heart attack, stroke or dying of heart disease after five years, while those consuming the Mediterranean diet with more nuts showed a 28% lower risk of these outcomes.
They say prasugrel does better even if a stricter definition of heart attacks is used, and note that some patients died from both bleeding and a cardiovascular event (a bleeding stroke, for instance.) Overall, there were 188 deaths in the prasugrel group and 197 in the Plavix group.
Furthermore, 27 percent of the surgery group but only 13 percent of the monitoring group developed a cardiovascular problem such as a heart attack, heart disease or stroke.
They are a stroke clear of the field, with former major winners Justin Leonard and David Duval among a group three shots off the lead.
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