THE PREVALENCE OF SEROLOGICAL MARKERS OF VIRAL HEPATITIS AMONG LABOR MIGRANTS ARRIVING IN THE RUSSIAN FEDERATION Статья AlSalih N.D., Sychev D.A., Potemkin I.A., Kyuregyan K.K., Mikhailov M.I. Jurnal Infektologii. Interregional public organization Association of infectious disease specialists of Saint-Petersburg and Leningrad region (IPO AIDSSPbR). Том 9. 2017. С. 80-85