P1‐281: CLINICAL AND PARACLINICAL COMPARISONS BETWEEN MYOTONIC DYSTROPHY TYPE 1 (DM1) AND FRONTOTEMPORAL (BVFTD) PATIENTS. (1st July 2019) - Morin, Alexandre; Funkiewiez, Aurélie; Stoikovic, Tanja; Eymard, Bruno; Dubois, Bruno; Azuar, Carole