K. Pantelaki

Seroepidemiology of hepatitis A among Greek children indicates that the virus is still prevalent: Implications for universal vaccination

X. Pedeli, D. Cassimos, A. Tragiannidis, 2009, Journal of medical virology.

Seroepidemiology of Hepatitis B in Greek Children 6 Years After the Implementation of Universal Vaccination

M. Theodoridou, C. Hadjichristodoulou, D. Cassimos, 2008, Infection.