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Current pharmacological treatments for Parkinson's dis- ease are not entirely adequate. A high proportion of patients chronically treated with levodopa and other dopaminergic drugs develop motor complications (fluctua- tions and dyskinesiae) and psychiatric complications.1 2 Additionally, some specific motor functions such as gait, balance, speech, deglutition, etc, become less responsive as disease and duration of treatment increase. It seems that both "non-physiological" dopaminergic stimulation
Obeso et al. (Wed,) studied this question.