Msika wapadziko lonse wa ECG wotsogolera ndi: 3M, BD, Mindray Medical International Limited, Medtronic, HP, Koninklijke Philips NV, CR Bard, B. Braun Melsungen AG, Siemens, General Electric Company, Nihon Kohden, Affinity Medical Technologies, Boston Scientific, Spacelabs , Marquette, Toshiba Corporation...
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