[1] Providence Vet Affairs Med Ctr, Infect Dis Res Program, Providence, RI USA
[2] Univ Rhode Isl, Dept Pharm Practice, Kingston, RI 02881 USA
[3] Providence Vet Affairs Med Ctr, Surg Serv, Providence, RI USA
[4] Vet Affairs Boston Healthcare Syst, Infect Control, W Roxbury, MA USA
[5] Brown Univ, Dept Infect Dis, Alpert Med Sch, Providence, RI 02912 USA
[6] Brown Univ, Dept Surg, Alpert Med Sch, Providence, RI 02912 USA