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Non-randomised patients in a cholecystectomy trial: characteristics, procedures, and outcomes
Axel Ros, Per Carlsson, Mikael Rahmqvist, Karin Bäckman, Erik NilssonVolume:
6
Language:
english
DOI:
10.1186/1471-2482-6-17
Date:
December, 2006
File:
PDF, 473 KB
english, 2006