Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-02070-y, published online 16 May 2017

This Article contains an error in the labelling of the forest plots in Figures 3 and 4 where ‘with tube’ and ‘without tube’ are inverted. The correct Figures 3 and 4 appear below as Figures 1 and 2 respectively.

Figure 1
figure 1

Forest plot: comparison of success rate between DCR with and without silicone intubation.

Figure 2
figure 2

Forest plot: subgroup analysis of the success rate between DCR with and without silicone intubation.