Echographie

atlas d'échographie : 

www.aly-abbara.com/echographie/Atlas_echographie/atlas_echographie.html

Biométrie :

www.aly-abbara.com/echographie/biometrie/biometrie.html

Collège française d'échographie fœtale :

www.cfef.org/

International Society of Ultrasound in Obstetrics and Gynecology : 

www.isuog.org/

obstetric ultrasound :

www.ob-ultrasound.net/

the british medical ultrasound society : 

www.bmus.org/intro/home.asp

society for maternal fetal medicine : 

www.smfm.org/default.cfm

European Federation of Societies for Ultrasound in Medicine and Biology : 

www.efsumb.org/intro/home.asp