Lexell, Jan MD, PhD, DPhil h.c.; Frontera, Walter R. MD, PhD, FRCP
From the Department of Health Sciences, Lund University, Lund, Sweden (JL); and University of Puerto Rico, School of Medicine, San Juan, Puerto Rico (WRF).
All correspondence should be addressed to: Jan Lexell, MD, PhD, DPhil h.c., Department of Health Sciences, Lund University, SE-22100, Lund, Sweden.
Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article.
