$$\rightleftharpoonup{xx}$$
$$\longleftharp{xx}$$,
$$\longrightharp{xx}$$,
There was a typo in the abstract of Imaging Calcium Responses in GFP-tagged Neurons of Hypothalamic Mouse Brain Slices. 'Stokes' was spelt with an 'r' at publication. This has been corrected to
The huge Stokes shift of fura-red permits multicolor analysis of the red fluorescence in combination with GFP using a single excitation wavelength.
from
The huge Strokes shift of fura-red permits multicolor analysis of the red fluorescence in combination with GFP using a single excitation wavelength.