The article makes reference to a "network of fibroblast-mesenchymal cells". My understanding is that the lamina propria is composed of fibroblasts AND mesenchymal cells, and not a fibroblast-mesenchymal cell. I suggest using the term "mesenchymal cell" CL: 0008019
From the report listing CT terms without IDS: 2022-09-20 Release
Some of the CL names in the report already exist in Cell Ontology: