In the published article, there was an error. The unit of AUC used throughout the paper is incorrect. A correction has been made to the sections “Patients eligible for TDM and simulation for the calculated optimal dose,” (paragraph 3) “Therapeutic drug monitoring” (paragraph 2) and to the footnotes of Table 1. The unit for AUC previously stated: “AU*day/L” The corrected unit for AUC appears below: “AU*day/mL” The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated