CHICAGO (AP) — Chicago Police Superintendent Eddie Johnson is a few weeks — if not days — away from having a kidney transplant.

Department spokesman Anthony Guglielmi says that doctors have told Johnson they are in the final stages of selecting a donor and that the surgery could be “imminent.” He says that Johnson’s son, Daniel, another relative and a stranger are under consideration as kidney donors.

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In January, after he had a public dizzy spell he said that he’d been battling a kidney condition for more than three decades and was on a waiting list for a transplant. Since then, Johnson has, thanks in large part to an exercise regimen, lost 44 pounds.

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Johnson has said that after the operation, he should be back at work in three to five weeks.

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