attack
beam
beat
cardiac
cardiogram
cardiograph
cardiologist
cardiology
care
chart
curve
death
diagnosis
ecg
ekg
electrocardiogram
electrocardiograph
energy
flat
frequency
graph
graphic
health
healthy
heartbeat
illness
illustration
laser
life
line
medical
medicine
patient
pictogram
pressure
pulsating
pulse
pumping
rate
rhythm
scope
screen
sick
signal
simple
surveillance
trace
vitality
wave
waveform