Correction to: Nature Protocols https://doi.org/10.1038/s41596-018-0013-x, published online 23 July 2018

In the HTML version of this paper originally published online, text in Table 6 was misaligned in a way that made it difficult to determine which entries in the “Problem,” “Possible reason,” and “Solution” columns corresponded to one another. Additional but less severe alignment problems were also present in the PDF and print articles. These errors have been corrected in the HTML and PDF versions of the paper.