Recursive Partitioning Analysis for Local Control Achieved With Stereotactic Body Radiation Therapy for the Liver, Spine, or Lymph Nodes oleh Roman O. Kowalchuk, MD, Michael R. Waters, MD, PhD, Sunil W. Dutta, MD, Marie L. Mack, BS, K. Martin Richardson, MS, Kelly Spencer, MS, Kara D. Romano, MD, James M. Larner, MD, Jason P. Sheehan, MD, PhD, C. Ronald Kersh, MD