consequently , 31p nmr spectra of untreated tumors have to be supplemented with other tumor data , e.g . rate of oxygen consumption , cell survival time under hypoxic stress and/or fraction of metabolically active , non-clonogenic hypoxic cells , to be useful in quantitative determination of tumor hypoxia and hence prediction of tumor radioresistance caused by hypoxia .
C0007620
cell survival
C0007634
cells