[Fundamentals of syphilis prevention today].
Filippova
N G
NG
Soboleva
N P
NP
Martyunenko
S E
SE
Syrov
V A
VA
D006801:Humans; D012426:Russia / Q000453:epidemiology; D012959:Socioeconomic Factors; D013587:Syphilis / Q000453:epidemiology / Q000517:prevention & control*