TY - RPRT TI - Natural abundance isotope ratios to differentiate sources of carbon used during tumor growth in vivo AU - Holland, P. AU - Hagopian, W. M. AU - Jahren, A. H. AU - Rusten, T. E. PY - 2020 DO - 10.1101/2020.09.22.307587 UR - https://www.biorxiv.org/content/10.1101/2020.09.22.307587v1 ID - 10.1101/2020.09.22.307587 ER -