Towards a Medication Core Data Set for the Medical Informatics Initiative (MII): Initial Mapping Experience between the German Procedure Classification (OPS) and the Identification of Medicinal Products (IDMP). - Susanne Zabka; Danny Ammon; Thomas Ganslandt; Jan E. Gewehr; Christian Haverkamp; Saskia Kiefer; Heinrich Lautenbacher; Matthias Löbe; Sylvia Thun; Martin Boeker (JOWO, 2019)