The Chiropractic Theories: A Textbook of Scientific Research Review

This book helped me on the Principles of Chiropractic portion of the Part II National Chiropractic Boards. The boards also lists this as one of the references used for this portion of the test. The following are helped out a lot.
National Board of Chiropractic Part II Study Guide: Key Review Questions and Answers isbn:0974328731
National Board of Chiropractic Part III Study Guide: Key Review Questons and Answers with Explanations isbn: 0974328723
The questions were great and the explanations show you how to think on this test. Leach's book, The Chiropractic Theories is a necessity for the boards and a reference in practice.

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