Magnetic resonance imaging findings of the lumbar spine in elite horseback riders: Correlations with back pain, body mass index, trunk/leg-length coefficient, and riding discipline - Kraft, C. N.; Pennekamp, P. H.; Becker, U.; Young, M.; Diedrich, O.; Lüring, C.; von Falkenhausen, M. (The American Journal of Sports Medicine, 2009)