Atlas-based segmentation of brainstem regions in neuromelanin-sensitive magnetic resonance images. - Marc Puigvert; Gabriel Castellanos; Javier Uranga; Ricardo C. Abad; María A. Fernández-Seara; Pau Pastor; María A. Pastor; Arrate Muñoz-Barrutia; Carlos Ortiz-de-Solorzano (Computer-Aided Diagnosis, 2015)