10 medical apparatus and supplies, namely cardiac monitors; ECG analyzers; ECG recorders; surgical monitors; pulse oximeters; apparatus for displaying medical data and computer analysis thereof comprising ECG wave forms, blood pressure, cardiac output, temperature, capnography, respiration, cardiac rhythm and pulse oximetry, and gas analysis; apparatus for printing electrocardiograms, cardiac data and analysis thereof; temperature monitors; blood pressure monitors; keypads for medical monitors and analyzers and covers therefor; critical care monitors; remote control for medical apparatus; leads, cables, connectors and battery packs for medical apparatus; medical data transmitters and receivers and antenna systems therefor; medical alarm displays; apparatus for recording and storing ECG wave forms and other cardiac data; electrocardiographic medical data acquisition modules; respiratory and anesthetic gas monitors and analyzers; cardiac stress testers and exercise treadmills for cardiac stress testers; pacemaker analyzers; arrhythmia recognition training apparatus; apparatus for storing, reviewing, analyzing and monitoring ECG wave forms and other cardiac data and comprising a central processing unit, a printer, a monitor, a modem, data storage modules and an optical disk reader; defibrillators; cardiopulmonary exercise testers; cardiac respiratory monitors; apparatus for interfacing medical monitoring, testing, analyzing and storage devices; water traps and filters for medical equipment; critical care monitors; neonatal monitors; apparatus for analyzing ECG signals, defibrillating and pacing; holter recorders; medical electrodes for ECG monitoring and recording; plates, straps and clamps for attaching medical electrodes to a patient; pediatric medical electrodes; medical electrode clips; Holter hook up kits containing skin preparation products, stress vests, belts and shoulder straps for use with Holter recorders; ambulatory blood pressure hook up kits comprising microphone pads, blood pressure cuff pads, skin preparation pads, medical electrodes, patient diaries and adhesive strips; blood pressure measuring devices and replacement parts therefor, namely cups, cables, microphones, lead wires and cables; defibrillator pads; battery packs for defibrillators; and defibrillator paddles