作者单位:
Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, London W2
[1]
National Polio Surveillance Project, World Health Organization, New Delhi, India
[2]
Enterovirus Research Centre, Parel, Mumbai, India
[3]
Global Polio Eradication Initiative, World Health Organization, Geneva, Switzerland
[4]
发布时间
2013-11-20