<http://webisa.webdatacommons.org/94938673>	<http://www.w3.org/ns/prov#value>	"h the placenta located in the anterior portion (OR 3.5; 95% CI 1.1-11.2), and accreta was also abundant (OR 15.1, 95% CI 2.3-100.6), which is in agreement with our results[9].Factors such as old age, multiparity, previous abortion, previous cesarean section are frequently associated with placenta previa." .
<http://webisa.webdatacommons.org/94938673>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<medsci.org> .
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