Objective: To study the high risk factors of the occurrence, and to discuss the precautionarymeasure to reduce the occurrence of pre-eclampsia.

Meconium peritonitis:prenatal ultrasonographic findings and the analysis of prognosis;

Application of prenatal ultrasonographic diagnosis in the esophageal atresia of fetuses;

Analysis of cordocentesis guided by transabdominal ultrasound in 115 patients for prenatal diagnosis;

Antepartum Detection of IgG Antibody Titer by Microcolumn Gel Method:a Report of 92 Cases;

Preventive effect of prenatal diagnosis to birth defects in 9339 cases of living birth infants;

Deletion analysis and prenatal diagnosis of 32 patients with Duchenne muscular dytrophy;

The ethical problem in the prenatal diagnosis;

Study on present conditions of antenatal examination and its influential factors on pregnant women;

Relationship between Health Education and Antenatal Examination and Abnormalities of Pregnancy and Labor, Retrospective Study of 546 Cases;

Methods Among the 9 345 deliveries between 2000 and 2004 in our hospital,68 cases with placental abruption were analyzed retrospectively on antenatal examinations and outcomes.