Kevorkian, A., Boikinova, O., Baltadjiev, I., Hristov, J., Petrova, N., Tjutjundjiev, S., Vatev, N. Epidemiological study on hepatitis B infection in Plovdiv (Bulgaria). Athens: Papazissis pub., 2010 485-491,.
Kevorkian, A., Boikinova, O., Baltadjiev, I., Hristov, J., Petrova, N., Tjutjundjiev, S., Vatev, N. Epidemiological study on hepatitis B infection in Plovdiv (Bulgaria). Athens: Papazissis pub., 2010 485-491,.
Kevorkian, A., Boikinova, O., Baltadjiev, I., Hristov, J., Petrova, N., Tjutjundjiev, S., Vatev, N. (2010) Epidemiological study on hepatitis B infection in Plovdiv (Bulgaria), Athens: Papazissis pub. 485-491,.
Kevorkian, A., Boikinova, O., Baltadjiev, I., Hristov, J., Petrova, N., Tjutjundjiev, S., & Vatev, N. (2010). Epidemiological study on hepatitis B infection in Plovdiv (Bulgaria). Public health and health care in Greece and Bulgaria : The challenge of the cross-border collaboration (с. 485-491). Athens: Papazissis pub..
Kevorkian A, Boikinova O, Baltadjiev I, Hristov J, Petrova N, Tjutjundjiev S, et al. Epidemiological study on hepatitis B infection in Plovdiv (Bulgaria). Athens: Papazissis pub.; 2010. p. 485-491.