Grouping and trajectories of the neuropsychiatric symptoms in patients with Alzheimer's disease, part I: symptom clusters.
Garre-Olmo
Josep
J
Research Unit, Institut d'Assistència Sanitària, Salt, Spain. josep.garre@ias.scs.es
López-Pousa
Secundino
S
Vilalta-Franch
Joan
J
de Gracia Blanco
Manuel
M
Vilarrasa
Antoni Bulbena
AB