Author Contributions: Dr Voltarelli had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Couri, Oliveira, Foss-Freitas, Burt, Voltarelli.
Acquisition of data: Couri, Oliveira, Moraes, Pieroni, Madeira, Simões, Foss, Voltarelli.
Analysis and interpretation of data: Couri, Stracieri, Barros, Malmegrim, Martinez, Foss, Voltarelli.
Drafting of the manuscript: Couri.
Critical revision of the manuscript for important intellectual content: Couri, Oliveira, Stracieri, Moraes, Pieroni, Barros, Madeira, Malmegrim, Foss-Freitas, Simões, Martinez, Foss, Burt, Voltarelli.
Statistical analysis: Couri, Martinez.
Obtained funding: Couri.
Administrative, technical, or material support: Couri, Simões.
Study supervision: Couri, Simões, Foss, Burt, Voltarelli.
Financial Disclosures: None reported.
Funding/Support: This work was supported by the Brazilian Ministry of Health, FAEPA-HCRP, FUNDHERP, CAPES, FAPESP, CNPq, FINEP, Genzyme Corporation, and Johnson & Johnson-LifeScan–Brazil.
Role of the Sponsors: The funding organizations did not participate in the design and conduct of the study, in the collection, management, analysis, and interpretation of the data, or in the preparation, review, or approval of the manuscript.
Additional Contributions: We thank Sebastião L. Brandão Filho, technician from the Endocrinology and Metabolism Laboratory, for performing C-peptide tests; the multiprofessional team of the Bone Marrow Transplantation Unit; and the Regional Blood Center of the Hospital das Clínicas of Ribeirão Preto, University of São Paulo, São Paulo, Brazil. No individuals named received any compensation from a funding sponsor for their contribution to this article.