April 24, 1959
Dear Mr. Teal:
Enclosed is a copy of the reply I have received from Dr. J. R. Heller, Director, 
National Cancer Institute which I believe is self-explanatory.
After you have had an opportunity to review Dr. Heller's letter. I would be 
interested in having your comments.
With kind regards,
Sincerely,
John E. Fogarty, M. C.