"Any practitioner, public health official, or educator in the field will find a use for this book. Patients may find it valuable for education purposes, as well....This second edition certainly has improved upon its predecessor. Its practical nature, clear photos, and comments following clinical cases provide practitioners with expert guidance as if the editor were physically present. Seldom does a book deliver what it promises; however, in this instance, it has and I feel it will become a standard for years."--Doody's Review Service