Careful clinical observation is essential for diagnosis of Huntington's disease Observação clínica cuidadosa é essencial para o diagnóstico da doença de Huntington

Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi, Japan.Correspondence: Ken Nakamura; Niijima Nation Health Insurance Shikinejima Clinic; 100-0511 Shikinejima - Tokyo - Japan; E-mail: m02064kn@jichi.ac.jpConflict of interest: There is no conflict of interest to declare.Received 14 March 2012; Accepted 22 March 2012