This continuing series gathers and presents original research results on the leading edge of medicine and biology. Each article has been carefully selected in an attempt to present substantial topical data across a broad spectrum. Topics discussed include CVLT learning curve for patients with Type 2 diabetes mellitus; healthy eating for children and families; hysterectomy complications and procedures; obesity and birth rates; chronic post-operative chest pain after cardio-thoracic surgery; pertussis in adolescence; computer assisted total knee arthroplasty and respiratory diseases related to tobacco consumption.