24: Population-Based Analysis of Outcomes for Patients with Brain Metastases from Epidermal Growth Factor Receptor Mutation Positive Non-Small Cell Lung Cancer Treated with Tyrosine Kinase Inhibitor Alone Or Combined with Radiotherapy. (October 2021) - Kong, Timothy; Nichol, Alan; Ho, Cheryl; Benny, Alexander; Chooback, Negar; Fraser, Ian; Gondara, Lovedeep; Lefresne, Shilo