Developing a knowledge base to support the annotation of ultrasound images of ectopic pregnancy. - Ferdinand Dhombres; Paul Maurice; Stéphanie Friszer; Lucie Guilbaud; Nathalie Lelong; Babak Khoshnood; Jean Charlet; Nicolas Perrot; Eric Jauniaux; Davor Jurkovic; Jean-Marie Jouannic (J. Biomed. Semant., 2017)