[Echogenicity of the substantia nigra in Parkinson's disease: its relation to clinical findings].
Miwa
Hideto
H
Department of Neurology, Wakayama Medical University, Japan.
Okawa
Masae
M
Kondo
Tomoyoshi
T
D042241:Early Diagnosis; D006801:Humans; D010300:Parkinson Disease / Q000000981:diagnostic imaging*; D013378:Substantia Nigra / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color