Fluid is collected from patients upon their initial visits to the UAB Cancer Center clinics. Whole blood is processed to aliquots of serum, plasma, and buffy coat. Aliquots of urine and saliva are also obtained and frozen. Access to these specimens is provided to UAB Cancer Center members via the TPSF, and to other researchers via the CHTN. Thus, requests for fluid should be made via the TPSF or CHTN application.