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Chapter 1: Introduction	Chapter 2: Terms and Abbreviations
Chapter 3: Background	Chapter 4: Architectual Overview
Chapter 5: USB Data Flow Model	Chapter 6: Mechanical
Chapter 7: Electrical	Chapter 8: Protocol Layer
Chapter 9: USB Device Framework	Chapter 10: USB Host: Software and Hardware
Chapter 11: Hub Specification	Chapter 11a: Hub Spec. (Up for review)