How?
dose painting by contours
dose painting by numbers
Xing (PMB 2002), Chao (IJROBP 2001)
Madani (IJROBP 2007), De Ruysscher (R&O 2006)
Bentzen (Lancet Oncol 2005), Thorwarth (IJROBP 2007)
Vanderstraeten (PMB 2006)