The Effect of Single Sport Specialization in Youth Sports: Does It Increase the Risk of Injury?: A Prospective Study

High Incidence Rate of Lumbar Spinal Disease among Child and Adolescent Weightlifting Athletes: A Prospective 4-Year Cohort Study Kazu Toyooka, MD, JAPAN
Comparison of Clinical Outcome and Graft Maturation in Double-Bundle Anterior Cruciate Ligament Reconstruction Between Young and Elder Patients Mashaiko Saito, MD, PhD, JAPAN
The Impact of Oral Contraceptive Hormones on Anterior Cruciate Ligament Strength Jason L. Dragoo, MD, UNITED STATES
Discussion Magaly Iñiguez, MD, CHILE Jason L. Koh, MD, MBA, UNITED STATES