In 2018, Jeroen Vermazeren graduated for his BSc Data Science and Knowledge Engineering at Maastricht University. During his bachelor, Jeroen studied abroad at the University of Sydney. In March 2020, he joined the DIAG for an master internship as part of his study Data Science at the Radboud University. During this internship, he investigated the automatic segmentation of tumour and immune cells in immunohistochemistry slides. After the internship, he continued with his Master thesis project within DIAG with a projected end date of June 2021. During his Master project, he is investigating tumour proportion score estimation using automatic segmentation and detection of tumour cells in immunohistochemistry slides. Jeroen is supervised by Francesco Ciompi and Caner Mercan.