CHAPTER ONE
1.0 Introduction
1.1 Testosterone
CHAPTER TWO
2.0 Testosterone and erectile function
CHAPTER THREE
3.0 therapy in men
3.1 therapy
3.1.1 Natural
3.1.2 Intramuscular depot injections
3.1.3 Alkylated androgens
3.1.4 Transdermal replacement
CHAPTER FOUR
4.0 Conclusion
References