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Dr. Hartman has prepared a catechism which will answer most of the questions that mothers now ask relative to the care of the teeth, particularly of the teeth of the child. The book is written in language that is as simple as that which characterizes Holt's famous catechism on the care and feeding of children, which it resembles in other ways.
The Teeth and the Mouth.. JAMA. 1927;89(26):2216. doi:10.1001/jama.1927.02690260064037