Early and late extensive chronic graft-versus-host disease in children is characterized by different Th1/Th2 cytokine profiles: findings of the Children's Oncology Group Study ASCT0031.

Numerous mechanisms underlie chronic graft-versus-host disease (cGVHD), including skewing of Th1/Th2 cytokine expression. There are biological differences between early-onset and late-onset cGVHD. To test whether different Th1/Th2 cytokines are associated with early- or late-onset cGVHD, peripheral blood was collected from 63 children enrolled on the Children's Oncology Group Phase III trial ASCT0031 evaluating hydroxychloroquine therapy for newly diagnosed extensive cGVHD.

Characteristics of Veterans Health Administration chiropractors and chiropractic clinics.

Chiropractic services have been delivered on station at select Veterans Health Administration (VHA) medical facilities since late 2004. No published data describing the characteristics of VHA chiropractic physicians (chiropractors) and chiropractic clinics exist at a national level. This study was designed to examine elements of the structures of chiropractic services in VHA settings.