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Genetic relationships and epidemiological links between wild type 1 poliovirus isolates in Pakistan and Afghanistan

Mehar Angez, Shahzad Shaukat, Muhammad M Alam, Salmaan Sharif, Adnan Khurshid and Syed Sohail Zahoor Zaidi*

Virology Journal 2012, 9:51  doi:10.1186/1743-422X-9-51