The pioneering science of organs created in 4D for the study of human pathologies applied to female infertility: the Developmental Biology Laboratory of the University of Pavia, with Valeria Merico, Paola Rebuzzini, Giulia Fiorentino and Mario Zanoni, coordinated by Silvia Garagna and Maurizio Zuccotti, with the collaboration of the GeneraLife group, are developing a 4-dimensional reconstruction of the mouse ovary, to facilitate the deepening of the morphological and molecular problems that can cause infertility.