[1] Univ North Carolina Hosp, Dept Radiat Oncol, Chapel Hill, NC USA
[2] Natl Canc Inst, Radiat Oncol Branch, Natl Inst Hlth, Bethesda, MD USA
[3] Beilinson Med Ctr, Rabin Med Ctr, Davidoff Canc Ctr, Petah Tiqwa, Israel
[4] Natl Canc Inst, Mol Imaging Branch, Ctr Canc Res, Natl Inst Hlth, Bethesda, MD USA
[5] Univ North Carolina Hosp, Lineberger Comprehens Canc Ctr, Chapel Hill, NC USA
[6] Univ Tsukuba, Dept Radiat Oncol, Proton Med Res Ctr, Tsukuba, Ibaraki, Japan
[7] Univ Washington, Dept Radiat Oncol, Fred Hutchinson Canc Ctr, Seattle, WA USA
[8] Univ Barcelona, Hosp Clin Barcelona, BCLC Grp, Liver Unit,ICMDM, Barcelona, Spain
[9] Hosp Clin Barcelona, Liver Oncol Unit, Liver Unit, Barcelona, Spain
[10] Univ N Carolina, Lineberger Comprehens Canc Ctr, Div Gastroenterol & Hepatol, Chapel Hill, NC USA
[11] Univ N Carolina, Dept Radiat Oncol, Lineberger Comprehens Canc Ctr, Chapel Hill, NC USA