Kathy B sent this link to a VERY good article with photos:
The authors are Michelle Crean and Eilene Ribbens, with special thanks to rescue and shelter workers who have contributed their experiences and knowledge.
"I'd love to say that every puppy mill survivor only needs love to turn it into a wonderful family pet. But that would be a lie. Love is definitely needed in large amounts, but so is patience. The damage done during the years in the mill usually can be overcome, but it takes time and dedication."
-- From "Rehabilitation of a Puppy Mill Dog" by Michelle Bender and Kim Townsend