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Probst, Pascal, Kathrin Grummich, Patrick Heger, Steffen Zaschke, Phillip Knebel, Alexis Ulrich, Markus W. Büchler, and Markus K. Diener. "Blinding in Randomized Controlled Trials in General and Abdominal Surgery: Protocol for a Systematic Review and Empirical Study." Syst Rev 2016.

Probst, Pascal, et al. "Blinding in Randomized Controlled Trials in General and Abdominal Surgery: Protocol for a Systematic Review and Empirical Study." Syst Rev 2016.