Anghel Andrei, leading consultant spine surgeon at Orth. Klinik Hessisch Lichtenau. Graduated from UMF Carol Davila, Bucharest. Residency at Vitos Klinik Kassel, Klinikum Kassel and Orth. Klinik Hessisch Lichtenau. Member of the German Spine Society and awarded the Master Certificate in Spine Surgery from the German Society of Spine Surgery.