Technical note : Recommendations for a standard procedure to assess cortical bone at the tissue-level in vivo using impact microindentation - Díez Pérez, Adolfo. (Institut Hospital del Mar d'Investigacions Mèdiques) ; Bouxsein, M. L. (Center for Advanced Orthopedic Studies, Beth Isreal Deaconess Medical Center and Department of Orthopedic Surgery, Harvard Medical School, Boston, MA, USA) ; Eriksen, E. F. (Oslo University Hospital (Oslo, Noruega)) ; Khosla, S. (Division of Endocrinology and Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA) ; Nyman, J. S. (Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN, USA) ; Papapoulos, S. (Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands) ; Tang, S. Y. (Department of Orthopaedic Surgery, Washington University in St Louis, St Louis, MO, USA) ; Universitat Autònoma de Barcelona