The chapters in this volume present the latest developments in medicine and biology. Chapter One reviews the antitumor effecrs of lithium carbonate. Chapter Two analyses the current evidence on the role of epigenetic mechanisms involved in the progression of various types of cancer and their clinical relevance. Chapter Three examines pregnancy and hemodialysis. Chapter Four focuses on the pharmacokinetics, efficacy and safety of levonorgestrel. Chapter Five discusses challenges and management of childhood obesity in the United Kingdom. Chapter Six reviews dynamic and integrated synaptic processing in sex-steroid sensitive medial amygdala of female rats. Chapter Seven studies the characterization of anti-coxsackie virus B3 constituents of Scabiosa arenaria Forssk by reversed phase-high-performance liquid chromatography. Chapter Eight provides a review of risk factors, diagnosis and management of congenital upper limb anomalies. Chapter Nine summarizes the current knowledge on genetics, environmental factors, clinical characteristics, medical, laser and surgical treatment options of exfoliation syndrome and exfoliative glaucoma.