Placenta previa, placenta accreta, and vasa previa.
Obstet Gynecol. 2006 Apr 1;107(4):927-41.
Placenta accreta, increta, and percreta.
Obstet. Gynecol. Clin. North Am. 2013 Mar 1;40(1):137-54.
Abnormal Placentation: Placenta Previa, Vasa Previa, and Placenta Accreta.
Obstet Gynecol. 2015 Sep 1; 126 (3): 654-668.