1. Barnhart KT, Gosman G, Ashby R, Sammel M. The medical management of ectopic pregnancy: a meta-analysis comparing single dose and multidose regimens. Obstet Gynecol. 2003;101:778–84.
2. Beigi RH. Epidemiology, clinical manifestations and diagnosis of tuboovarian abscess. [Cited September 2015a]. http://www.uptodate.com/contents/epidemiology-clinical-manifestations-and-diagnosis-of-tuboovarian-abscess?source=search_result&search=tuboovarian+abscess&selectedTitle=2~33
3. Beigi RH. Management and complications of tuboovarian abscess. [Cited September 2015b]. http://www.uptodate.com/contents/management-and-complications-of-tuboovarian-abscess?source=search_result&search=tuboovarian+abscess&selectedTitle=1~33
4. Dupuis C, Kim Y. Ultrasonography of adnexal causes of acute pelvic pain in pre-menopausal non-pregnant women. Ultrasonography. 2015;34(4):258–67.
5. Fritz M, Speroff L. Ectopic pregnancy. In: Clinical gynecologic endocrinology and infertility. Philadelphia: Lippincott Williams & Wilkins; 2010. p. 1388–407. 978-0-7817-7968-5.