title: Imaging: MRS, MRI, PET/SPECT: con.
authors.affiliation: McGill University, Montreal, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Kalra
authors.forename: D L
authors.initials: DL
authors.lastname: Arnold
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000473:pathology*; D003952:Diagnostic Imaging; D023381:Endpoint Determination; D006801:Humans; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D015203:Reproducibility of Results; D014055:Tomography, Emission-Computed; D015899:Tomography, Emission-Computed, Single-Photon