TremorJAMA 311:948-954, Elias, W.J. & Shah, B.B., 2014
Classification and Treatment of TremorJAMA 266:1115-1117, Hallett,M., 1991
Diagnosis & Treatment, Physiologic & Pathologic TremorsAnn Int Med 93:460-465, Jankovic,J.,et al, 1980