2 ." ▁ ▁References ▁ ▁External ▁links ▁Rad iation ▁Ther apy ▁On col ogy ▁Group ▁ ▁Category : Can cer ▁organizations ▁based ▁in ▁the ▁United ▁States ▁Category : Med ical ▁research ▁instit utes ▁in ▁the ▁United ▁States ▁Category : Rad i ology ▁organizations ▁Category : C lin ical ▁trial ▁organizations ▁Category : Med ical ▁and ▁health ▁organizations ▁based ▁in ▁Pennsylvania <0x0A> </s> ▁The ▁Great ▁Western ▁Railway ▁( G WR ) ▁ 3 6 0 0 ▁Class ▁was ▁a ▁class ▁of ▁ 2 - 4 - 2 T ▁side ▁tank ▁steam ▁locomot ive , ▁designed ▁by ▁William ▁Dean ▁and ▁built ▁at ▁Sw ind on ▁in ▁three ▁lots ▁in ▁ 1 9 0 0 - 1 9 0 3 : ▁ ▁Const ruction ▁▁ 1 1 ▁( ren umber ed ▁ 3 6 0 0 ) ▁( L ot ▁ 1 3 0 , ▁ 1 9 0 0 ) ▁▁ 3 6 0 1 – 3 6 2 0 ▁( L ot ▁ 1 3 4 , ▁ 1 9 0 2 ) ▁▁ 3 6 2 1 – 3 6 3 0 ▁( L ot ▁ 1 4 3 , ▁ 1 9 0 3 ) ▁ ▁History ▁Dean ▁had ▁built ▁an ▁experimental ▁ 2 - 4 - 2 T ▁number ed ▁ 1 1 , ▁whose ▁success ▁led ▁to ▁the ▁can cellation ▁of ▁another ▁batch ▁of ▁ 2 - 4 - 0 ▁" Met ro " ▁T anks ▁and ▁the ▁construction ▁of ▁the ▁ 3 6 0 0 s ▁in ▁their ▁place