aViral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Inc., Frederick National Laboratory for Cancer Research, Frederick
bDepartment of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland
cDivision of Infectious Diseases, University of California San Diego, San Diego, California
dDivision of Infectious Diseases, Department of Medicine, University of Colorado Denver, Aurora, Colorado, USA.
Correspondence to Denise Whitby, Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Inc., Frederick National Laboratory for Cancer Research, P.O. Box B, Frederick, MD 21702, USA. Tel: +1 301 846 1714; fax: +1 301 846 7119; e-mail: [email protected]
Received 4 February, 2015
Revised 16 March, 2015
Accepted 20 March, 2015
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