Simulation and Synthesis in Medical Imaging 4th International Workshop, SASHIMI 2019, Held in Conjunction with MICCAI 2019, Shenzhen, China, October 13, 2019, Proceedings - Burgos, Ninon; Burgos, Ninon; Gooya, Ali; Gooya, Ali; Svoboda, David; Svoboda, David (Springer International Publishing : Imprint: Springer, 2019)