[1] Univ British Columbia, Dept Pharmacol & Therapeut, Vancouver, BC V6T 1W5, Canada
[2] Univ British Columbia, Dept Med, Div Neurol, Vancouver, BC V6T 1W5, Canada
[3] Ajou Univ, Brain Dis Res Ctr, Suwon 441749, South Korea
[4] Mahidol Univ, Fac Sci, Dept Anat, Bangkok 10400, Thailand