| evidence for chlamydia trachomatis as a human papillomavirus cofactor in the etiology of invasive cervical cancer in brazil and the philippines. | chlamydia trachomatis infection was examined as a cause of invasive cervical cancer (icc) among women with human papillomavirus (hpv) infection. in total, 499 women with incident icc (icc patients) and 539 control patients from são paulo, brazil, and manila, the philippines, were included. c. trachomatis antibodies were detected by microimmunofluorescence assay. presence of hpv dna in cervical specimens was determined by a polymerase chain reaction-based assay. c. trachomatis seropositivity was ... | 2002 | 11807714 |