Larsen, Sandra; Oberle, Mark W.; Sánchez Braverman, Juana M.; Rosero-Bixby, Luis; Vetter, Kathleen M.
(J. B. Lippincott Co., 1991)
As part of a case-control study to investigate the high incidence of cervical cancer in Costa Rican women, the seroprevalence of the treponematoses, in particular, syphilis was determined. In each age group, women with a ...