1. Dapartment of Child and Adolescent Psychiatry, Woodbridge Hospital/Institute of Mental Health, Institute of Health Building, Singapore 168937, Singapore
2. Institute of Acupuncture and Moxibustion, China Academy of Traditional Chinese Medicine, Beijing, 100700, Beijing
3. Queenstown Polyclinic, Family Health Service, Singapore 149296, Singapore
4. Acupuncture Research Clinic, Ang Mo Kio Community Hospital, Singapore 569 766, Singapore
5. Smoking Cessation Clinic, Institute of Health, Singapore 168 937, Singapore