Former US President, George H. W. Bush
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(CNN) -- Former President George H.W. Bush remains in a Houston hospital Thursday after being treated for bronchitis, his spokesman said.
Bush, 88, has been hospitalized at Houston's Methodist Hospital for six days and has a "lingering cough," spokesman Jim McGrath told CNN.
His family hopes he will be discharged by the weekend, McGrath said.
Bush has a form of Parkinson's disease that affects his legs and requires him to use a wheelchair.
He is the oldest living former president and a World War II veteran.
He was previously hospitalized overnight in 2007 after a fainting spell caused by dehydration and hot weather while golfing in California.
-- CNN's Chuck Johnston contributed to this report.
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