National Cancer Institute,
Frederick Cancer Research and Development Center,
Laboratory of Experimental and Computational Biology,
P. O. Box B,
Frederick, MD 21702-1201.
(301) 846-5581 (-5532 for messages),
fax: (301) 846-5598,
email:
toms@ncifcrf.govhttp://www.lecb.ncifcrf.gov/~toms/