On January 28, 2000, Logan began receiving treatment from Dr. Stanislaw Burzynski in Houston, Texas. Dr. Burzynski's drug is called "antineoplastons". More information about Dr. Burzynski and his drug can be found from the following links.
This is Dr. Burzynski's official website.
This website was put together by some of Burzynski's patients.
This is an article about Dr. Burzynski that was published in the October 5, 1998 issue of U. S. News and World Report.
This is a somewhat more detailed discussion of Dr. Burzynski's work.