I would like to point out a potential mistake on your mouse brain atlas (P56, coronal) , regarding the labeling of visual cortical areas in your Mouse Brain Atlas (P56, Coronal).
Take, for example the image 83 of 132,
Here, what is labeled as VISam should be VISpm. In fact VISam is mislabeled all the way across the primary visual cortex (VISp) length in the rostro-caudal axis, as adjacent to VISp on the medial side. According to all studies detailing mouse visual cortical areas (e.g. Glickfeld and Olsen 2017; PMID: 28746815; Keller et al., Nature 2020, Figure 5 and Extended Data Figs 6-10; PMID: 32499655), it is impossible that VISam and VISp are adjacent in any coronal section. This is confirmed in your own Allen Brain Explorer (3d Viewer).
What you label as VISam is in fact VISpm, and in the reference coronal atlas, VISPm appears only at image 92 of 132, which is way too occipital.
Since this Atlas has become the gold standard to identify cortical areas, it will be a bit problematic for us to show virus infections aimed at VISpm using your coronal atlas…
Could you please look into it and possibly rectify it?
All the best