Ross I.SilverMD,Beverly G.ColemanMD, inRadiology Secrets Plus (Third Edition), 2011 5If the placenta appears to be covering the internal os, what entity may be present? This is calledplacentaprevia,which occurs in 1 in 200 to 400 deliveries, more commonly after a previouscesarean section. ...
Interventional radiology in women with pernicious placenta previa.pernicious placenta previaartery embolizationballoon occlusiondoi:10.7504/fk2014110106HE Xiao-juLIU Huai.Chinese Journal of Practical Gynecology and Obstetrics