Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 【神经内科】老年痴呆症前兆及预防. That video is uploaded by 如闻医生 at 2021-05-07T19:56:09-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [MwQlZoO-huk]