Global Diagnostic Electrocardiograph Market By Product (Stress ECG Devices, Resting ECG, Implantable Loop Recorders, Smart ECG Monitors, Event Monitors, Holter Monitors, MCT Devices) By Lead Type (Single-lead,3-6 lead,6- 12 lead, Above 12 lead) By End User (Hospitals, Ambulatory Surgical Centers, Clinics & Cardiac Centers, Other End Users)By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2026-2035