Keicher, L., O'Mara, M. T., Voigt, C. C., & Dechmann, D. K. N. (2017). Stable carbon isotopes in breath reveal fast incorporation rates and seasonally variable but rapid fat turnover in the common shrew (Sorex araneus). The Journal of Experimental Biology, 220(15), 2834-2841. doi:10.1242/jeb.159947.