“The book will be a useful compendium for postgraduate students and readers who wish to keep themselves updated with the latest evidence. Each of the chapters in this book is a crash course on the subject and will serve the reader well by focusing on traditional concepts as well as the most modern updated evidence on the issues at hand. The chapters have been carefully chosen keeping in mind the current proceedings at national and international meetings while keeping the language used simple, easy to understand, and concise. Each chapter focuses on traditional concepts as well as the most modern updated evidence on the issues at hand. “