[1] Univ Florence, Dept Crit Care Med & Surg, Unit Gerontol & Geriatr Med, I-50139 Florence, Italy
[2] Univ Florence, Sch Psychol, I-50139 Florence, Italy
[3] Fdn Ist Andrea Devoto, Florence, Italy
[4] Associat Antropozoa Onlus, Florence, Italy
[5] Alzheimer Day Care Ctr Luigi Amaducci, Florence, Italy