Presynaptic (Type III) cells in mouse taste buds sense sour (acid) taste
The Journal of Physiology (2008) - Comments
pubmed: 18420705  doi: 10.1113/jphysiol.2008.151233  issn: 1469-7793  issn: 0022-3751 

Yijen A. Huang, Yutaka Maruyama, Robert Stimac, Stephen D. Roper