Mafosfamide in Treating Patients With Progressive or Refractory Meningeal Tumors

Josephine Ford Cancer Center at Henry Ford Hospital, Detroit

Mayo Clinic Cancer Center, Rochester

Children's Hospital and Regional Medical Center - Seattle, Seattle

Children's Hospital Los Angeles, Los Angeles

Children's National Medical Center, Washington D.C.

Warren Grant Magnuson Clinical Center - NCI Clinical Studies Support, Bethesda

Texas Children's Cancer Center, Houston

University of Texas - MD Anderson Cancer Center, Houston

Neurological Research Center, Inc., Bennington