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.