Change in dose and volume :
1970-1986; 50HL/761 HL;
CCSS 40Gy (20.0-57.9Gy) more extended field/appa
2002-2009; 68 HL pts; AHOD 0031 15-25 Gy involved field/involved site
2009-2012; 123 HL pts; COG AHOD 15-25Gy Involved field/involved site