Author Contributions: Dr K. C. Chretien 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: K. C. Chretien, Greysen, Kind.
Acquisition of data: K. C. Chretien, Greysen.
Analysis and interpretation of data: K. C. Chretien, J.-P. Chretien, Kind.
Drafting of the manuscript: K. C. Chretien, J.-P. Chretien, Kind.
Critical revision of the manuscript for important intellectual content: K. C. Chretien, Greysen, Kind.
Statistical analysis: K. C. Chretien, J.-P. Chretien.
Administrative, technical, or material support: Greysen, J.-P. Chretien.
Study supervision: K. C. Chretien, Kind.
Financial Disclosures: None reported.
Additional Contributions: Henry Sondheimer, MD, Association of American Medical Colleges, provided assistance with distributing the survey requests. W. Scott Schroth, MD, MPH, George Washington University, provided invaluable guidance and support throughout the study. Bernhard Wiedermann, MD, MA, Rachel Moon, MD, Mary Ottolini, MD, MPH, Children's National Medical Center, and Charles Faselis, MD, Washington DC VA Medical Center, provided feedback on the survey instrument, reviewed the manuscript, or both. None of the named individuals received compensation for their assistance.