Dr. Stanislaw Burzynski, who practices in Houston, Texas, has discovered that a group of peptides (short chains of amino acids) and amino acid derivatives normally are present in the body and serve to keep cells healthy and dividing normally. He also has discovered that people with cancer are critically short on these substances, which he has named "antineoplastons". He has particular success using these antineoplastons with non-Hodgkin's lymphoma, as well as two brain cancers: glioblastoma multiforme and astrocytoma, both of which are incurable using conventional therapy.