Vetter KM, Barnes RC, Oberle MW, Rosero-Bixby L, Schachter J. Seroepidemiology of chlamydia in Costa Rica. Genitourin Med. 1990 Jun;66(3):182-8.
Vetter KM, Barnes RC, Oberle MW, Rosero-Bixby L, Schachter J. Seroepidemiology of chlamydia in Costa Rica. Genitourin Med. 1990 Jun;66(3):182-8.