By <a href="http://www.arnoldandporter.com/attorneys.cfm?attorney_id=38649"_blankGrant Bagley, <a href="http://www.arnoldandporter.com/attorneys.cfm?attorney_id=38743"_blankJohn Bentivoglio and <a href="http://www.arnoldandporter.com/attorneys.cfm?attorney_id=3859"_blankRosemary Maxwell ,members of the healthcare and pharmaceutical regulatory practice in the Washington, D.C. office of the law firm Arnold & Porter.