| Reports of presence of MOR in: BSTrh. |
| Cell pool position in region | Hemisphere | Qualitative density of MOR in BSTrh | Annotation | Reference | Collator |
| everywhere | left hemisphere | not present | Collator note: from the text and Figure 2 it is inferred this nucleus does not express MOR. | Poulin J-F., Arbour D., Laforest S. & Drolet G., 2009: |
