Dr. Atkins went down on April 8, 2003; the low temperature that day was 54F. He may have tripped, but there was no ice. It is interesting how this fabrication that was made up after the fact keeps coming up again and again so many years later.
I thought the ice was freezer ice carelessly thrown out on the sidewalk by a new kid working at a mom and pop carneceria.
Been a while— his research assistant has a website, directed at the Vitamin C IV work am thinking. The ice was in the building shadow just outside the door transom. Should not have been there, salt had gotten the rest.