1. Callen PW. Ultrasonography in obstetrics and gynecology. In: Levine D, editor. Ectopic Pregnancy. 5th ed. Philadelphia, Pa, USA: Saunders Elsevier. 20017. p. 1020–47.
2. Cesarean scar ectopic pregnancies: Etiology, diagnosis, and management;Rotas;Obstet Gynecol,2006
3. Primary tubal choriocarcinoma presented as ruptured ectopic pregnancy;Karaman;J Clin Diagn Res,2015
4. A case of primary tubal gestational choriocarcinoma;Butler;Aust N Z J Obstet Gynaecol,2010
5. Gestational choriocarcinoma of Fallopian tube diagnosed with a combination of p57KIP2 immunostaining and short tandem repeat analysis: Case report;Nakayama;J Obstet Gynaecol Res,2011