Virnig, Christine; Bush, Robert K
William S. Middleton VA Hospital, Madison, Wisconsin, USA
Correspondence to Robert K. Bush, MD, William S. Middleton VA Hospital, 2500 Overlook Terrace, Madison, WI 53705, USA Tel: +1 608 263 6174; fax: +1 608 263 3104; e-mail: [email protected]
Supported in part by funds from the US Department of Veterans Affairs.
doi: 10.1097/MCP.0b013e328010c812