TY  - RPRT
TI  - Optimal indices for testing parkinsonian rigidity.
AU  - H Teräväinen
AU  - J K Tsui
AU  - E Mak
AU  - D B Calne
PY  - 1989
DO  - 10.1017/s0317167100028857
UR  - https://pubmed.ncbi.nlm.nih.gov/2731084/
ID  - 2731084
ER  -