About the Authors

Abbey P. Theiss

Contributed equally to this work with: Abbey P. Theiss, David Chafin

Affiliation Ventana Medical Systems Inc., Tucson, Arizona, United States of America

David Chafin

Contributed equally to this work with: Abbey P. Theiss, David Chafin

Affiliation Ventana Medical Systems Inc., Tucson, Arizona, United States of America

Daniel R. Bauer

Affiliation Ventana Medical Systems Inc., Tucson, Arizona, United States of America

Thomas M. Grogan

Affiliation Ventana Medical Systems Inc., Tucson, Arizona, United States of America

Geoffrey S. Baird

gbaird@u.washington.edu

Affiliations Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America, Department of Pathology, University of Washington, Seattle, Washington, United States of America

Competing Interests

Geoffrey Baird has read the journal's policy and the authors of this manuscript have the following competing interests: The indicated authors are employees of Ventana Medical Systems, Inc. This does not alter any author's adherence to any PLOS ONE policy.

Author Contributions

Conceived and designed the experiments: AT DC TG GSB. Performed the experiments: AT DC DB TG GSB. Analyzed the data: AT DC DB TG GSB. Wrote the paper: TG GSB DC.