henry copeland:

Uncovering errors in biomedical research results: New fact-checker ensures scientists cook with the right ingredients -- ScienceDaily

In a cohort of 155 research papers, the new fact-checker combined with manual analysis identified 25 per cent of papers as having sequence errors. The researchers were testing on a suspected group of the papers so while the figure doesn't reflect a baseline error rate, the numbers are still startling. "That's quite a lot of wrong sequences in a small group of papers and there will be many more out there, unfortunately, given that nucleotide sequence reagents have been described in literally hundreds of thousands of biomedical publications," said Professor Byrne.
- www.sciencedaily.com