1. Placenta praevia after caesarean section care bundle: background information for health professionals;National Patient Safety Agency and Royal College of Obstetricians and Gynaecologists,2010
2. Placenta praevia, placenta praevia accrete and vasa praevia: diagnosis and management,2010
3. Royal College of Obstetricians and Gynaecologists Green Top Guideline no. 27. Placenta Praevia, placenta praevia accrete and vasa praevia: diagnosis and management,2011
4. Diagnosis and management of placenta accrete;José;Best Pract Res Clin Obstetrics Gynaecol,2008
5. Conservative approach to the management of morbidly adherent placentae;Meyer;Ceylon Med J,2011