1. Inclusion criteria for childhood cancer survivors: 1) diagnosed between 1992-2007 with central nervous system tumors, sarcomas, leukemia, or lymphoma; 2) off active treatment for at least six-months, and alive with no evidence of progressive disease; 3) currently between age 8 (i.e., at an age at which they could be reasonably expected to complete a survey and where validated instruments exist) and 34 (cutpoint based on the possibility that individuals were almost 18 in 1992 and decade has since passed); and 4) able to speak or read English.