abstract
attack
background
beat
black
blue
cardiac
cardio
cardiogram
care
chart
curve
diagnosis
display
ecg
ekg
electrocardiogram
emergency
frequency
glow
graph
graphic
health
healthcare
healthy
heart
heartbeat
hospital
life
light
line
love
medical
medicine
monitor
patient
pattern
pulse
rate
rhythm
screen
shape
sign
signal
symbol
technology
test
transform
valentine
wave