Practical Approaches to Patient-Centered Care in Europe: Mixed Methods Study Developing a Conceptual Framework for Comprehensive Cancer Care Networks - Emily Hickmann; Peggy Richter; Hannes Schlieter; Maja Cemazar; Dorota Dudek-Godeau; Nele Grapentin; Ellen Griesshammer; Marjetka Jelenc; Sigita Liutkauskiene; Alain Ravaud; Xavier Troussard; Simone Wesselmann (JMIR Cancer)