Articles in this issue include: "Basic Appearance of US Structures and Pitfalls?, "US of the Shoulder?, "US of the Elbow and Wrist?, "Prolotherapy and PRP Applications - Evidenced Based Discussion?, "US of the Hip & Lower Extremity?, "US Guided Injections in MSK Medicine?, "Physiatric Perspectives of MSK US?, "Orthopedic Perspectives of MSK US?, "Rheumatologic Perspectives of MSK US?, "Radiology Perspectives of MSK US?, "European Perspectives on MSK US?, "Sports Medicine Applications for MSK US?, ? "MSK US in Pain Medicine?, "US of Nerve Entrapments?, "US Guided BOTOX Therapy?, "Foot and Ankle.?