For citations:
Agaev A.R., Gayvoronskaya O.V., Gorlanov I.A., Egorova Yu.S., Eremina N.V., Nikiforov B.N., Smirnova T.S. Analysis of the incidence of syphilis in the Leningrad region and St. Petersburg: the current state. Journal Infectology. 2011;3(2):40-46. (In Russ.) https://doi.org/10.22625/2072-6732-2011-3-2-40-46