Authors: Antti Malmivaara; Pär Slätis; Markku Heliövaara; Päivi Sainio; Heikki Kinnunen; Jyrki Kankare; Nina Dalin-Hirvonen; Seppo Seitsalo; Arto Herno; Pirkko Kortekangas; Timo Niinimäki; Hannu Rönty; Kaj Tallroth; Veli Turunen; Paul Knekt; Tommi Härkänen; Heikki Hurri Journal: Spine (Phila Pa 1976) Date: 2007-01-01 Impact factor: 3.468
Authors: James N Weinstein; Jon D Lurie; Tor D Tosteson; Brett Hanscom; Anna N A Tosteson; Emily A Blood; Nancy J O Birkmeyer; Alan S Hilibrand; Harry Herkowitz; Frank P Cammisa; Todd J Albert; Sanford E Emery; Lawrence G Lenke; William A Abdu; Michael Longley; Thomas J Errico; Serena S Hu Journal: N Engl J Med Date: 2007-05-31 Impact factor: 91.245
Authors: Wilco C Peul; Hans C van Houwelingen; Wilbert B van den Hout; Ronald Brand; Just A H Eekhof; Joseph T J Tans; Ralph T W M Thomeer; Bart W Koes Journal: N Engl J Med Date: 2007-05-31 Impact factor: 91.245