MIMIC (‘Medical Information Mart for Intensive Care’) is a relational database that contains information regarding the stay of patients admitted to a tertiary academic medical center in Boston, Massachusetts, USA. MIMIC-IV contains complete information on the hospital stay of each patient: laboratory measurements, medications used, vital signs, etc. The database is designed to support various research in the field of healthcare. While the data is de-identified, it contains detailed patient care information. Therefore, to obtain access to the data, researchers seeking to use it must complete a training course in human subjects research and sign a data use agreement.