TY - GEN AU - Rogalski,E J AU - Mesulam,M M TI - Clinical trajectories and biological features of primary progressive aphasia (PPA) SN - 1875-5828 PY - 2009///1104 KW - Aphasia, Primary Progressive KW - diagnosis KW - Atrophy KW - pathology KW - Brain KW - Disease Progression KW - Humans KW - Severity of Illness Index N1 - Publication Type: Journal Article; Research Support, N.I.H., Extramural; Review UR - https://doi.org/10.2174/156720509788929264 ER -