analyse
analysis
background
beat
cardiogram
cardiologist
cardiology
care
chart
check
data
diagnosis
diagram
ecg
ekg
electrical
electrocardiogram
electrocardiograph
emergency
equipment
examination
frequency
graph
green
health
healthy
heart
heartbeat
hospital
illness
life
line
medical
medicine
paper
patient
preventive
print
printed
professional
pulse
record
research
science
sick
technology
test
treatment