-
DiagÂnosÂtic Tests of the MonÂtral NeuÂroÂlogÂiÂcal HosÂpiÂtal (EEG, EMG, X-​ray, MRI, CT-​scan)
MUHC. Canada. -
MedÂline Plus. 2016. USA. -
OneCare Media. USA. -
Mark Freedman, MD. Merck Manual - Consumer version. 2023. USA.