Comparison of lumbar and shunt cerebrospinal fluid specimens for cytologic detection of leptomeningeal disease in pediatric patients with brain tumors

Amor Gajjar, Maryam Fouladi, Andrew W. Walter, Stephen J. Thompson, David A. Reardon, Thomas E. Merchant, Jesse J. Jenkins, Aiyi Liu, James M. Boyett, Larry E. Kun, Richard L. Heideman