Multicenter randomized trial of the spiral Z-stent compared with the Wallstent for malignant biliary obstruction.
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R. Chuttani | D. Desilets | R. Shah | S. Sherman | D. Pleskow | G. Lehman | J. Baillie | M. Branch | P. Okolo | J. Bosco | S. Sheth | D. Howell | W. Parsons | Patrick I. Okolo | M.Stanley Branch | M. Branch