In the article “Antigen presentation on artificial acellular substrates: modular systems for flexible, adaptable immunotherapy”, published in the April 2009 issue of Expert Opinion on Biological Therapy (Expert Opin Biol Ther 2009;9(4):451-64), there is an error in . The colours have been incorrectly edited (colours in the legend have been reversed and the bars indicating data for day 19 have been coloured incorrectly). This results in the graph giving misleading information. The corrected figure is shown below.
Informa Healthcare would like to apologise for any confusion caused.