Raycheva, R., Stoilova, Y., Kevorkyan, A., Rangelova, V. Epidemiological prognosis of pertussis incidence in Bulgaria. Plovdiv: 2020 509-514,.
Raycheva, R., Stoilova, Y., Kevorkyan, A., Rangelova, V. Epidemiological prognosis of pertussis incidence in Bulgaria. Plovdiv: 2020 509-514,.
Raycheva, R., Stoilova, Y., Kevorkyan, A., Rangelova, V. (2020) Epidemiological prognosis of pertussis incidence in Bulgaria, Plovdiv: 509-514,.
Raycheva, R., Stoilova, Y., Kevorkyan, A., & Rangelova, V. (2020). Epidemiological prognosis of pertussis incidence in Bulgaria. Folia Medica, 62 (3), 509-514.
Raycheva R, Stoilova Y, Kevorkyan A, Rangelova V. Epidemiological prognosis of pertussis incidence in Bulgaria. Folia Medica. 2020; 62(3): 509-514.