Author Contributions: Dr Paterson 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: Paterson, Belliveau, Beggs, Kinney.
Acquisition of data: Paterson, Thompson, Belliveau, Darnall, Chadwick, Krous, Kinney.
Analysis and interpretation of data: Paterson, Trachtenberg, Thompson, Belliveau, Darnall, Kinney.
Drafting of the manuscript: Paterson, Kinney.
Critical revision of the manuscript for important intellectual content: Paterson, Trachtenberg, Thompson, Belliveau, Beggs, Darnall, Chadwick, Krous, Kinney.
Statistical analysis: Trachtenberg.
Obtained funding: Paterson, Kinney.
Administrative, technical, or material support: Thompson, Belliveau, Darnall, Chadwick, Kinney.
Study supervision: Paterson, Krous, Kinney.
Financial Disclosures: None reported.
Funding/Support: This work was supported by grants from the Scottish Cot Death Trust, Evelyn Deborah Barrett Fellowship, CJ Foundation for SIDS, First Candle/SIDS Alliance, CJ Murphy Foundation, National Institute of Child Health and Human Development (R37-HD20991 and PO1-HD36379), and Children's Hospital Mental Retardation Core Grant (P30-HD18655).
Role of the Sponsors: None of funding organizations had any role in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; or the preparation, review, and approval of the manuscript.
Acknowledgment: We thank the San Diego Medical Examiner system for help in the accrual of tissue specimens.