vii Contents Series Foreword ix Introduction xi Essential Questions xiii Chapter 1 What Is ALS? 1 Chapter 2 The History of ALS 11 Chapter 3 Causes and Risk Factors 23 Chapter 4 Signs and Symptoms 41 Chapter 5 Diagnosis, Treatment, and Management 51 Chapter 6 Long-Term Prognosis and Potential Complications 81 Chapter 7 Effects on Family and Friends 93
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