Citrate-Coated Superparamagnetic Iron Oxide Nanoparticles Enable a Stable Non-Spilling Loading of T Cells and Their Magnetic Accumulation. - Boosz P; Pfister F; Stein R; Friedrich B; Fester L; Band J; Mühlberger M; Schreiber E; Lyer S; Dudziak D; Alexiou C; Janko C (Cancers, 2021)