His talk was excellent. It was fluid, concise, and very impressive. I was mesmerized. When he finished, Alex was ready for questions from the audience. After he answered 2 others in the crowd, I raised my hand.

He gazed at me, showing no hint of recognition, "Yes, sir. What is your question?"

"You tested a total of 113 subjects. According to the results you presented, 85 of them showed favorable results. I wondered how you would explain 3 cases of death and severe deterioration in 9 others."

He smiled, "My presentation was the first to address this relatively rare disease. The numbers are too small to say for sure what...