"Correlates of gait speed among older adults from six countries: Findings from the COSMIC collaboration"
김기웅, Briana N Sprague, PhD, Xiaonan Zhu, PhD, Andrea L Rosso, MPH, PhD, Joe Verghese, MBBS, MS, Kim DelBaere, PhD, Darren M Lipnicki, PhD, Perminder S Sachdev, MD, PhD, Tze Pin Ng, MD, Xinyi Gwee, PhD, Keng Bee Yap, MMed, Ki-Woong Kim, MD, PhD, Ji Won Han, MD,, JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES, 10.1093/gerona/glad090.