Assessment of quality of life in women five years after breast cancer surgery, members of Breast Cancer Self-Help Groups – non-randomized, cross-sectional study - Sowa, Magdalena; Głowacka-Mrotek, Iwona; Monastyrska, Ewelina; Nowikiewicz, Tomasz; Mackiewicz-Milewska, Magdalena; Hagner, Wojciech; Zegarski, Wojciech (Contemporary Oncology/Współczesna Onkologia, 2018)