Youssef Zeidan: Excellent meeting for the ESTRO Breast Subgroup Youssef Zeidan, Radiation Oncology at Lynn Cancer Institute, shared a post on X: “Excellent meeting for the ESTRO Breast Subgroup chaired by Philip Poortmans. Together we can do so much more!” More posts featuring ESTRO25 Blog Posts cancer ESTRO Breast Subgroup ESTRO25 OncoDaily Oncology Philip Poortmans Youssef Zeidan