Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Unit | Complement | Killed | Wounded | Missing |
| --- | --- | --- | --- | --- |
| Head Quarters | 150 off[icers] 1231 men | 0 off 0 men | 2 off 0 men | 0 off 0 men |
| Personal Staff | 83 off 9 men | 7 off 0 men | 22 off 0 men | 0 off 0 men |
| Medical Staff | 39 off 0 men | 0 off 0 men | 7 off 0 men | 0 off 0 men |
| Artillery Corps | 15 off 10 men | 0 off 0 men | 0 off 0 men | 0 off 0 men |
| Royal Waggon Train | 12 off 266 men | 0 off 0 men | 0 off 0 men | 0 off 0 men |
| Royal Corps of Artillery Drivers | 13 off 1212 men | 0 off 0 men | 0 off 0 men | 0 off 0 men |
Question:
What was the number of Personal Staff Units Killed?
Answer:
7 off 0 men