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Concept: Touchback


American football remains one of the most popular sports for young athletes. The injuries sustained during football, especially those to the head and neck, have been a topic of intense interest recently in both the public media and medical literature. The recognition of these injuries and the potential for long-term sequelae have led some physicians to call for a reduction in the number of contact practices, a postponement of tackling until a certain age, and even a ban on high school football. This statement reviews the literature regarding injuries in football, particularly those of the head and neck, the relationship between tackling and football-related injuries, and the potential effects of limiting or delaying tackling on injury risk.

Concepts: Medicine, Head and neck anatomy, High school, Youth, American football, Touchback, National Football League, High school football


To review safety and feasibility in a single center using transradial access (TRA) for noncoronary interventions.

Concepts: American football, Baseball, Touchback, Field goal


We evaluated the efficacy and safety of single lower calyceal tract combined with flexible nephroscopy for the management of staghorn renal stones by percutaneous nephrolithotomy.

Concepts: Kidney, Nephrology, Kidney stone, Touchback


Most data on transbronchial lung cryobiopsy (TBLC) are from single centers, with little evidence on the outcome of different methods for performing TBLC.

Concepts: Epidemiology, Cancer, Diseases and disorders, Pulmonology, Randomized controlled trial, Touchback


To evaluate the safety of single intravitreal 2 mg ziv-aflibercept (0.08 mL) injections for the treatment of choroidal neovascular membranes (CNVM).

Concepts: Trigraph, Touchback


To evaluate the safety and efficacy of an intra-articular injection of autologous protein solution (APS) for treatment of canine osteoarthritis (OA).

Concepts: Osteoarthritis, Knee, Joint, Programming language, Ligament, Touchback


To evaluate the safety and efficacy of the completely retroperitoneoscopic nephroureterectomy (CRNU), a retrospectively comparative study between completely and traditionally retroperitoneoscopic nephroureterectomy (TRNU) was done in a single center.

Concepts: Comparison, Cultural studies, American football, Baseball, Touchback, Field goal, Ljubljana


The goal of this study was to evaluate the safety and efficacy of a new technique for posterior column fixation through the standard ilioinguinal approach.

Concepts: Standardization, American football, Touchback, Sing Tao Daily


To compare efficacy and safety of two commercially available single incision slings (SIS) and trans-obturator vaginal tapes (TOT), namely MiniArcâ„¢ and Monarcâ„¢ slings, and report the results at 5-year follow-up.

Concepts: Calculus, Mathematical analysis, Touchback


To report a single operator’s experience using a modified single-puncture gastrostomy technique deploying up to three nonabsorbable gastropexy anchors.

Concepts: Touchback