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A comparison of conventional and retrospective measures of change in symptoms after elective surgery
Eva M Bitzer, Marco Petrucci, Christoph Lorenz, Rugzan Hussein, Hans Dörning, Alf Trojan, Stefan NickelVolume:
9
Langue:
english
DOI:
10.1186/1477-7525-9-23
Date:
December, 2011
Fichier:
PDF, 315 KB
english, 2011