3d
abstract
active
alive
attack
background
beat
black
blue
cardio
cardiogram
cardiology
cardiopulmonary
chart
concept
conduction
cpr
digital
ecg
ekg
electrical
electrocardiogram
emergency
flat
frequency
healthcare
healthy
heart
heartbeat
hospital
life
line
medical
medicine
monitor
normal
pulse
rate
rendering
resuscitation
rhythm
sinus
symbol
wave