TY - JOUR AU - Virkus, Walter W. TI - Foreword SN - 1538-8506 SN - 1938-2480 PY - 2007 JO - J Knee Surg JF - The Journal of Knee Surgery LA - EN VL - 20 IS - 01 SP - 48 EP - 49 DA - 2010/01/20 DO - 10.1055/s-0030-1248021 UR - http://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0030-1248021 ER -