Scheer JK, Smith JS, Passias PG, Kim HJ, Bess S, Burton DC, Klineberg EO, Lafage V, Gupta M, Ames CP, The International Spine Study Group
Pierce KE, Passias PG, Brown AE, Bortz CA, Alas H, Passfall L, Krol O, Kummer N, Lafage R, Chou D, Burton DC, Line B, Klineberg E, Hart R, Gum J, Daniels A, Hamilton K, Bess S, Protopsaltis T, Shaffrey C, Schwab FA, Smith JS, Lafage V, Ames C, on behalf of the International Spine Study Group (ISSG)