Monitoring Carbon Ion Beams Transverse Position Detecting Charged Secondary Fragments: Results From Patient Treatment Performed at CNAO. - Toppi M; Baroni G; Battistoni G; Bisogni MG; Cerello P; Ciocca M; De Maria P; De Simoni M; Donetti M; Dong Y; Embriaco A; Ferrero V; et al. (Frontiers in oncology, 2021)