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Dahm, Philipp, Hubert R. Kuebler, Susan F. Fesperman, Roger L. Sur, Charles D. Scales, Johannes W. Vieweg, and Glenn M. Preminger. “440: Barriers to the Practice of Evidence Based Urology in the United States.” In Journal of Urology, 177:147–48. Ovid Technologies (Wolters Kluwer Health), 2007. https://doi.org/10.1016/s0022-5347(18)30693-1.

Dahm P, Kuebler HR, Fesperman SF, Sur RL, Scales CD, Vieweg JW, et al. 440: Barriers to the Practice of Evidence Based Urology in the United States. In: Journal of Urology. Ovid Technologies (Wolters Kluwer Health); 2007. p. 147–8.

Dahm, Philipp, et al. “440: Barriers to the Practice of Evidence Based Urology in the United States.” Journal of Urology, vol. 177, no. 4S, Ovid Technologies (Wolters Kluwer Health), 2007, pp. 147–48. Crossref, doi:10.1016/s0022-5347(18)30693-1.

Dahm P, Kuebler HR, Fesperman SF, Sur RL, Scales CD, Vieweg JW, Preminger GM. 440: Barriers to the Practice of Evidence Based Urology in the United States. Journal of Urology. Ovid Technologies (Wolters Kluwer Health); 2007. p. 147–148.