[1] University Hospital for Infectious Diseases,
[2] Mirogosjska 8,undefined
[3] 10000 Zagreb,undefined
[4] Croatia; Phone + 358-1-4603254,undefined
[5] Fax: +358-1-4678235,undefined
[6] e-mail: bruno.barsic@fran.bfm.hr,undefined
[7] Dept. for Infectious Diseases,undefined
[8] County Hospital,undefined
[9] Koprivnica,undefined
[10] Croatia,undefined
[11] Pliva Pharmaceuticals,undefined
[12] Zagreb,undefined
[13] Croatia,undefined