MO-0644 Practice patterns for outlining the axilla and IMC, findings of the RTQA for the ATNEC trial. (May 2022) - Butt, R.; Nabi, Z.; Mir, R.; Hills, J.; Wheatley, D.; Bhattacharya, I.; Ranger, A.; Cramp, S.; Hammonds, N.; Goyal, A.; Tsang, Y.M.