Result: The mean (± SD) age of AD patient was: 68.64 ± 7.90, the max age was: 84 years, the min age was: 56 years; Male / female: 10/15, the mean (±SD) age of male / female was: 66.60 ± 8.09/70.00 ± 7.74 years, no significant difference between male and female (p=0.30).