AO Spine Principles Seminar—Spinal Trauma and Infection,Your Decision Determines the OutcomeAO Spine Principles Seminar
AO Spine Advanced Seminar—Facing Difficult Cases,Strategies for Revision Surgery and Complication Management “困難症例に立ち向かう：再手術と合併症対策の実践”
AO Spine Principles Course – Principles Approaches and Surgical Tips on Anatomical Specimen
AO Spine Principles Seminar
AO Spine Masters Seminar-Learn special surgical techniquesfrom Masters