MEDICAL SCIENCES Correction for “Sensitivity of MRI resonance frequency to the orientation of brain tissue microstructure,” by Jongho Lee, Karin Shmueli, Masaki Fukunaga, Peter van Gelderen, Hellmut Merkle, Afonso C. Silva, and Jeff H. Duyn, which appeared in issue 11, March 16, 2010, of Proc Natl Acad Sci USA (107:5130–5135; first published March 2, 2010; 10.1073/pnas.0910222107).
The authors note that due to a printer’s error in adding an additional reference in the proof, beginning with the second citation for reference 12 on page 5130, right column, first paragraph, fifth line, all numerical references should have appeared as one number higher, e.g., reference 12 becomes reference 13.
This is with the exception of reference 1 on page 5133, left column, last paragraph, fifth line.