Viscosity reduction and stability study of Indian heavy crude oil/water emulsion using hydrogenated castor oil ethoxylate with 40 moles of ethylene oxide as surfactant by Shreyas Desai, Mousumi Chakraborty, Arun Kumar Jana, Himanshu P. Kohli

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Assessing the influence of abdominal aortic calcification on aseptic loosening in primary dorsal spinal fusion for degenerative conditions by N. Wagener, L. Schönnagel, P. Köhli, N. Taheri, F. Schömig, M. Pumberger, M. Müllner

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Quantifying spinal disc degeneration by evaluating T2 disc intensity by L. Schönnagel, T.V. Mihalache, P. Köhli, D. Yang, B. Hoehl, L.A. Becker, H. Schmidt, M. Pumberger

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The impact of smoking on low back pain and disability - A propensity score matched analysis by L. Schönnagel, B. Hoehl, N. Taheri, L.A. Becker, C. Henle, F. Schönmig, P. Köhli, H. Schmidt, M. Pumberger

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Assessing the impact of degenerative disc disease on lumbar mobility by L. Schönnagel, H. Dörfer, L. Mödl, B. Hoehl, L.M. Cordes, D. Yang, L.A. Becker, P. Köhli, M. Pumberger, H. Schmidt

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Experience with intraoperative vancomycin application in deformity surgery of patients with secondary scoliosis: A retrospective study at an academic spine center by N. Taheri, P. Köhli, Z. Li, Z. Whang, T.L. Vu-Han, K. Cloeren, A. Koch, S. Tsitsilonis, F. Schömig, T. Khakzad, M. Pumberger

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Seasonal variations of preoperative vitamin D deficiency and secondary hyperparathyroidism before lumbar fusion surgery by P. Köhli, J. Hambrecht, J. Zhu, E. Chiapparelli, A.E. Guven, K. Tsuchiya, E. Otto, L. Schönnagel, D. Jahn, J. Shue, M. Burkhard, M. Pumberger, A.A. Sama, F.P. Girardi, F.P. Cammisa, A.P. Hughes

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Should age cutoffs for bone quality screening be lower for patients undergoing lumbar fusion surgery? by P. Köhli, J. Hambrecht, J. Zhu, E. Chiapparelli, L. Schönnagel, A.E. Guven, R. Duculan, G. Evangelisti, J. Shue, K. Tsuchiya, M. Burkhard, M. Pumberger, C. Mancuso, A.A. Sama, F.P. Girardi, F.P. Cammisa, A.P. Hughes

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What are we missing? undetected low bone mineral density prior to lumbar fusion surgery by P. Köhli, J. Hambrecht, J. Zhu, E. Chiapparelli, L. Schönnagel, A.E. Guven, R. Duculan, E. Otto, A. Kienzle, G. Evangelisti, J. Shue, K. Tsuchiya, M. Burkhard, C. Mancuso, A.A. Sama, F.P. Girardi, F.P. Cammisa, A.P. Hughes

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