aLaboratory for Genotyping Development, Center for Genomic Medicine, RIKEN Yokohama Institute, Kanagawa

Departments of bNeuropsychiatry

cEnvironmental Medicine

dMedicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka,

eDepartment of Psychiatry, Faculty of Medicine, Saga University, Saga, Japan

Correspondence to Michiaki Kubo, MD, PhD, Laboratory for Genotyping Development, Center for Genomic Medicine, RIKEN Yokohama Institute, 1-7-22, Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan Tel: +81 45 503 9607; fax: +81 45 503 9606; e-mail: [email protected]

Received December 1, 2010

Accepted February 13, 2012