[P4–493]: IN VIVO VISUALIZATION OF [18]F‐THK5351 BINDING IN PRIMARY PROGRESSIVE APHASIA. (1st July 2017) - Schaeverbeke, Jolien; Bruffaerts, Rose; Evenepoel, Charlotte; Gabel, Silvy; Meersmans, Karen; Van Bouwel, Karen; Dries, Eva; Peeters, Ronald; Van Laere, Koen; Vandenberghe, Rik