1. Portable cathode-ray electrocardiograph, model EKGS 21: (technological physics laboratory Karajan, Vienna) Author(s): Cherney, Paul, 1st Lt., author Publication: [London] : Combined Intelligence Objectives Sub-Committee, [1945] Subject(s): Electrocardiography, Ambulatory -- instrumentationEquipment DesignMilitary MedicineWorld War IIAustria
