Since the first edition of this book, sonography of the peripheral nervous system has evolved further. This second, revised edition includes many state-of-the-art high-resolution images, the text has been adapted to reflect the current state of the literature, and information is presented using a more modern layout. This book provides a practical, clinically oriented overview of all aspects of sonographic diagnosis and interventional therapy of the peripheral nervous system.

Central America faces significant security challenges. Criminal threats, fragile political and judicial systems, as well as social hardships such as poverty and unemployment contribute to widespread insecurity in the region. Consequently, improving security conditions in these countries is a difficult, multifaceted endeavour. Because U.S. drug demand contributes to regional security challenges and the consequences of citizen insecurity in Central America are potentially far-reaching, the United States is collaborating with countries in the region to implement and refine security efforts. This book examines the extent of the security problems in Central America, the current efforts being undertaken by Central American governments to address them, and U.S. support for Central American efforts through the Central American Regional Security Initiative.