I sincerely apologize to the nation for using erroneous data in the papers.

As the lead author of the papers in which fake data appeared, I hold myself wholly responsible and I admit it and apologize.

After analyzing the data, our team concluded that the results . . . could not be trusted.

I would like to have time to confirm the validity of the technology.

I apologize to the people for creating an unspeakable shock and disappointment. I step down as professor of Seoul National University.

I respectfully ask legal authorities to launch an investigation as soon as possible. I am desperate to find out who switched the samples for what motive and how.