Key points are not available for this paper at this time.
From the Department of Biostatistics, Bioinformatics, and Epidemiology, Medical University of South Carolina, Charleston, South Carolina. Reprints: Jane Zapka, ScD, Department of Biostatistics, Bioinformatics, and Epidemiology, Medical University of South Carolina, 135 Cannon Street, Suite 303, Charleston, SC 29425. E-mail: email protected.
Jane G. Zapka (Mon,) studied this question.