| Date | Description |
|---|---|
| 2020-05-29 | delete address Dr. Susan Pattis 13F Changxin, No. 39 Anding Road, Chaoyang District Beijing, CHINA 100029 |
| 2020-05-29 | delete email sp..@126.com |
| 2020-05-29 | delete phone (310) 982-7226 |
| 2020-05-29 | delete phone (86-10) 64425151 |