International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) - the propagation of knowledge in ultrasound for the improvement of OB/GYN care worldwide: experience of ba... by Vrachnis, N, Papageorghiou, AT, Bilardo, CM, Abuhamad, A, Tabor, A, Cohen-Overbeek, TE, Xilakis, E, Mates, F, Johnson, SP, Hyett, J