seroprevalence of syphilis among women attending urban antenatal clinics in burkina faso, 1995-8. the ditrame study group. diminunation de la transmission mère-enfant. | to describe annual trends in syphilis seroprevalence and to identify risk factors of syphilis among pregnant women receiving antenatal care in bobo-dioulasso, burkina faso. | 2000 | 11026892 |