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Former Mayor Edward I. Koch was admitted Tuesday to NewYork Presbyterian-Columbia hospital, where he was being treated with antibiotics for an infection in one lung.
A spokesman for Mr. Koch, George Arzt, said he expected the former mayor to be released in time to celebrate his 88th birthday next week.
Mr. Koch still goes to his office regularly at the Bryan Cave law firm and writes movie reviews and commentaries on current events for thousands of subscribers online.