Seeks cure: Dr. Umberto de Boni has researched Alzheimer's disease for 12 years. But he says a sure diagnosis still can't be made until the brain is e(...)

Original Toronto Star caption: Seeks cure: Dr. Umberto de Boni has researched Alzheimer's disease for 12 years. But he says a sure diagnosis still can't be made until the brain is examined after death. Pieces of the puzzle have yet to be fitted together.