作者单位:
Department of Veterinary Public Health and Animal Pathology, University of Bologna, Ozzano Emilia, Bologna, Italy
[1]
Epidemiology Unit, Department of Infectious Parasitic and Immunomediated Diseases, Istituto Superiore di Sanità, Rome, Italy
[2]
Department of Clinical Sciences, L. Sacco, University of Milan, c/o Ospedale L. Sacco, Via G.B. Grassi 74, 20157 Milan, Italy
[3]
发布时间
2013-11-20