amplitude
analysis
background
beat
blue
body
cardiac
cardiogram
cardiology
care
curve
ecg
ekg
electrocardiogram
electrocardiograph
eq
equipment
exam
graph
graphic
grid
health
healthcare
healthy
heartbeat
human
illustration
life
line
medical
medicine
monitor
monitoring
pulsating
pulse
radiant
rate
recording
rhythm
shape
sine
sinus
sound
stress
technical
test
trace
vitality
wave