Steven Salzberg: Professor of Medicine and Biostatistics at the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine.
Michele Maiers: Assistant professor at Wolfe-Harris Center for Clinical Studies and co-principal investigator of the Integrated Care for Low Back Pain Study, funded by the U.S. Health Services and Resources Administration.
President Barack Obama's press conference President Barack Obama will hold his first press conference since March on Wednesday morning. He's expected to address the debate over the budget and the debt ceiling. Live coverage from NPR starts at 10:30 a.m.10:06 a.m.
You can follow Kerri Miller on Twitter at @KerriMPR
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