Whiteley M, Dos Santos S, Harrison C, Holdstock J, Lopez A (outubro de 2014). «Transvaginal duplex ultrasonography appears to be the gold standard investigation for the haemodynamic evaluation of pelvic venous reflux in the ovarian and internal iliac veins in women.». Phlebology. 30 (10): 706–13. PMID25324278. doi:10.1177/0268355514554638
Whiteley M, Dos Santos S, Harrison C, Holdstock J, Lopez A (outubro de 2014). «Transvaginal duplex ultrasonography appears to be the gold standard investigation for the haemodynamic evaluation of pelvic venous reflux in the ovarian and internal iliac veins in women.». Phlebology. 30 (10): 706–13. PMID25324278. doi:10.1177/0268355514554638
pelvicpain.org
Phillip Reginald, MD. «Pelvic Congestion»(PDF). The International Pelvic Pain Society. Consultado em 23 de dezembro de 2010