Fichtner, RR, Aral, SO, Blount, JH et al. (1983). Syphilis in the united states: 1967-1979
. Sexually Transmitted Diseases, 10(2), 77-80. 10.1097/00007435-198304000-00006
Fichtner, RR, Aral, SO, Blount, JH et al. (1983). Syphilis in the united states: 1967-1979
. Sexually Transmitted Diseases, 10(2), 77-80. 10.1097/00007435-198304000-00006