| sexually transmitted infections in male clients of female sex workers in benin: risk factors and reassessment of the leucocyte esterase dipstick for screening of urethral infections. | (1) to assess risk factors for urethral infections with chlamydia trachomatis, neisseria gonorrhoeae, and trichomonas vaginalis among male clients of female sex workers (fsws) in benin; (2) to study the validity of led testing of male urine samples compared to a highly sensitive gold standard (pcr) for the diagnosis of urethral infections with the organisms cited above. | 2003 | 14573834 |