Campylobacteriosis and other bacterial gastrointestinal diseases in Sofia, Bulgaria for the period 1987 – 2008
Ivanova, K and Мarinа, M and Petrov, P and Kantardjiev, T, Eurosurveillance, 15, 19474 (2010), https://doi.org/10.2807/ese.15.04.19474-en