Fig. 4
δ15N measurements of the mouse head&neck tumor model. a-c Head&neck tumors from March 2019 with 3 replicates of each tissue type (tumor, tumor bed) per mouse and 3 mice measured; d-e Head&neck tumors from August 2019 with 2 replicates of each tissue type (tumor, tumor bed) per mouse and 2 mice measured. Error bars indicate standard deviations of replicates