Erratum

Following publication of the original article [1] it was brought to our attention that some of the data within the article required correction.

Hence, please note that in the second paragraph of the section headed ‘Three-state markov model and transition probabilities’ there is a sentence which reads as:

“At the end of 12 weeks, approximately 65 % of patients in the CCO + SSD group were considered healed compared to 47 % in the Control group.”

However, this should read as:

“At the end of 12 weeks, approximately 47 % of patients in the CCO + SSD group were considered healed compared to 32 % in the Control group.”

This alteration does not affect the methodology or results.