Figure 5From: Effect of histamine-2-receptor antagonists versus sucralfate on stress ulcer prophylaxis in mechanically ventilated patients: a meta-analysis of 10 randomized controlled trialsPublication bias of the meta-analysis. Publication bias for the outcome of ventilator-associated pneumonia in studies of the effects of histamine-2-receptor antagonists versus sucralfate on stress ulcer prophylaxis in mechanically ventilated patients is shown. s.e., standard error.Back to article page