Author Contributions: Dr Domino 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: Domino, Hornbein,
Renner, Johnson, Alberti, Hankes.
Acquisition of data: Renner, Johnson, Alberti,
Analysis and interpretation of data: Domino,
Hornbein, Polissar, Hankes.
Drafting of the manuscript: Domino, Hornbein,
Critical revision of the manuscript for important
intellectual content: Domino, Hornbein, Polissar, Renner, Johnson,
Statistical analysis: Domino, Polissar.
Administrative, technical, or material support:
Domino, Polissar, Renner, Hankes.
Study supervision: Domino, Polissar, Hankes.
Financial Disclosures: None reported.
Acknowledgment: We would like to acknowledge
Blazej Neradilek, MS, for data analysis and Lynn Akerlund for manuscript preparation.