J. Bele

Perspectives from the global poliomyelitis eradication initiative.

H. Hull, J. Andrus, C. D. de Quadros, 1998, Bulletin of the World Health Organization.

Massive outbreak of poliomyelitis caused by type-3 wild poliovirus in Angola in 1999.

M. Otten, C. Chezzi, P. Eriki, 2000, Bulletin of the World Health Organization.

Seroprevalence of anti Toxoplasma gondii antibodies in the healthy population from north-western and central Romania.

A. Molnar, R. Radu, Z. Coroiu, 2009 .