GAP offer transversal competencies in multiple fields, such as mechanics (POLIMI, TCD), biomedical engineering (TUE, TUD), computer science (IMPAN, NTNU), biological and biochemical science (EMPA, CNRS). GAP network puzzle is completed by three other essential partners: excellence research center, i.e. ELETTRA synchrotron, unique for unprecedent high-resolution images of bones, clinical (IOG) and social institutions (CATT).