TY - JOUR AU - Koskiniemi, M; Van Vleymen, B; Hakamies, L; Lamusuo, S; Taalas, J TI - Piracetam relieves symptoms in progressive myoclonus epilepsy: a multicentre, randomised, double blind, crossover study comparing the efficacy and safety of three dosages of oral piracetam with placebo JO - J Neurol Neurosurg Psychiatry IS - 3 VL - 64 PY - 1998 DO - 10.1136/jnnp.64.3.344 SP - 344 EP - 348 ER -