URMC - Microbiology & Immunology, 11 Jan 2013 Authors: Sant AJ, McMichael A. http://www.ncbi.nlm.nih.gov/pubmed/22851641?dopt=Abstract
URMC - Microbiology & Immunology, 08 Aug 2012 http://www.ncbi.nlm.nih.gov/pubmed/22851641?dopt=Abstract