1. Clinical Neurophysiology Section – Neurology Service, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
2. Department of Pharmacy and Pharmaceutical Technology, and Physical Chemistry, Faculty of Pharmacy and Food Sciences, Clinical Pharmacy and Pharmaceutical Care Unit, University of Barcelona, Barcelona, Spain, and
3. Motor Neuron Diseases Unit, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain