activity
analysis
beat
beating
black
cardiac
cardio
cardiogram
cardiology
design
design element
diagnose
diagnosis
ecg
ekg
electrical
electrocardiogram
electrocardiography
element
graph
graphic
health
healthy
heart
heartbeat
icon
illustration
isolated
life
line
linear
medic
medical
medicine
monitor
pulse
rate
rhythm
sign
signal
symbol
symbolic
trace
wave