Correlations between COMT polymorphism and brain structure and cognition in elderly subjects oleh Eunsil Cha, MD, Hyun Jung Ahn, MS, Wonil Kang, MD, Kwang-Ik Jung, MD, PhD, Suk Hoon Ohn, MD, PhD, Shahid Bashir, PhD, Woo-Kyoung Yoo, MD, PhD, Massimo Tusconi.