Assoc. prof. Ph. D. Marija Ćurlin from the Faculty of Medicine participated in the Congress of the World Organization for the Billings Ovulation Method (WOOMB International) entitled THE “BILLINGS REVOLUTION” 70 YEARS LATER: From Fertility Knowledge to Personalized Medicine from 28 to 29 April 2023. The congress was organized in Rome by the Catholic University of the Sacred Heart (Università Cattolica del Sacro Cuore), and phD Ćurlin held a lecture “The Billings Ovulation Method and reproductive health: building the health awareness” and together with prof. Kristina Pavlović presented the organization WOOMB Croatia. As part of her visit to Rome, she also visited the Centro di Ricerca e Studi sulla Salute Procreativa (CeRiSSaP), where she arranged scientific cooperation with the researchers of that Center.