Correction: Advances in surgical therapy for thyroid cancer

Nat. Rev. Endocrinol. 7, 581–588 (2011); doi:10.1038/nrendo.2011.140

At the end of the second paragraph of the section 'Papillary thyroid microcarcinoma', it should read “In one study, tumor growth of 2 mm was detected in 30% of patients who underwent observation alone. More than one-third (56 of 162) of all patients assigned to observation underwent surgery after 19–56 months of observation, although for 47 of them this decision was not necessarily related to tumor progression. Lymph-node metastases were suspected by ultrasonography at the beginning of the study or during follow-up in 12.3% of all patients who underwent observation.” The error has been corrected for the HTML and PDF versions of the article.