3Ronsmans C,Chowdhury ME,Alam N,et al.Trends in still-births,early and late neonatal mortality in rurul Bangladesh:The role of public health interventions[J].Paediatric and Peri-natal Epidemiology,2008,22(3):269-279.
5Ram F,Singh A.Is antenatal care effective in improving maternal health in rural uttar pradesh?Evidence from a district level household survey[J].Biosoc Sci,2006,38(4):433-448.