I currently work as assistant professor in medical statistics at the Mathematical Institute of Leiden University and as a (bio)statistician at the department of Biomedical Data Sciences at the Leiden University Medical Center. My research is centred on statistical modelling for oncological patients, both from a methodological and applied point of view. I am focusing on causal inference and marginal structural models to develop novel methodologies for studying the effectiveness of received therapeutic regimens in fighting against cancer in presence of latent accumulation of chemotherapy-induced toxicity. More info about my research and work at https://sites.google.com/view/martaspreafico