Quicktime movie should be looping.
Shows cell on left injected with a greater volume than cell on right. Both cells
were injected with the same time and pressure; however, because the cell on the right is
lower than the cell on the left, the needle did not penetrate as far.
(version as an animated GIF file)
Page last revised 3 Jan 2001. Thanks to Ilia Ichetovkin for help
with the injections.