• A Population-based Serosurveillance of Syphilis in Costa Rica 

      Larsen, Sandra A.; Oberle, Mark W.; Sánchez Braverman, Juana M.; Rosero Bixby, Luis; Vetter, Kathleen M. (1991-04)
      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 ...
    • Prevalencia de enfermedades de transmisión sexual en las mujeres de Costa Rica 

      Oberle, Mark W.; Rosero Bixby, Luis; Larsen, Sandra A. (1990)
      Pocos estudios han descrito Ia epidemiología de las infecciones por enfermedades de transmisión sexual (ETS) basándose en muestras serológicas representativas de Ia población en general y no solo en grupos selectos de ...
    • Sexual Behavior, Sexually Transmitted Diseases, and Risk of Cervical Cancer 

      Stone, Katherine M.; Zaidi, Akbar; Rosero Bixby, Luis; Oberle, Mark W.; Reynolds, Gladys; Larsen, Sandra A.; Nahmias, Andre J.; Lee, Francis K.; Schachter, Juluis; Guinan, Mary E. (1995-03-14)
      To explore sexually transmitted diseases and sexual behavior as risk factors for cervical cancer, we analyzed data from a population-based case-control study of breast and cervical cancer in Costa Rica. Data from 415 cases ...