We are pleased to announce the addition of OncologyInformationService to our network! O.I.s) is providing longitudinal real-world data in solid tumors and haematological malignancies in the EUCAN region based on a representative samples of institutions and achieving ~10% of treated prevalence. It has established an international network of caregivers from academia, non-academic clinics and specialized practices. Ever since O.I.s) was founded more than 25 years ago, its scope and vision was to deep-dive into complex oncology/haematology real-world data, to analyze treatment algorithms and adherence to clinical guidelines – with the ever-present objective to improve cancer care in the real world. O.I.s) has large databases on a variety of haematological malignancies, including myelomas, myeloids, and lymphomas, amongst others.