Jaimo Ahn Editor

Robert J. Pignolo, MD, PhD
Chair, Division of Geriatric Medicine & Gerontology
Robert and Arlene Kogod Professor of Geriatric Medicine
Mayo Clinic College of Medicine
Rochester, MN, USA

Jaimo Ahn, MD, PhD, FACS
Advisory Dean and Co-Director, Orthopaedic Trauma & Fracture Reconstruction
Perelman School of Medicine
University of Pennsylvania
Philadelphia, PA, USA