In the June 2016 issue, the article beginning on page 1230 included errors in the number of patients corresponding to the respective circles in figure 2A. The circle sizes, however, were correct. The corrected figure is included below. We thank the unknown reader who called our attention to this error.
Gama de Abreu
Effects of volatile anesthetics on mortality and postoperative pulmonary and other complications in patients undergoing surgery: A systematic review and meta-analysis.
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