Division of Child and Adolescent Psychiatry, Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.

^*Correspondence to: Dr Ying-Sheue Chen, Division of Child and Adolescent Psychiatry, Department of Psychiatry, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei 112, Taiwan, R.O.C.

E-mail: [email protected]

Received: August 6, 2009; • Accepted: October 19, 2009.