However, one must be careful in the interpretation
of data, as a cell undergoing necrosis could also be
stained with annexin V+FITC, since the label may enter
in the cytoplasm through the damaged membrane
and stain the cytoplasm-exposed PS molecules, giving
a false positive result. If a fluorescence microcopy is not
available, then it is also possible to use annexin V-FITC
in a flow cytometry-based method [13].