機器
attack
background
beat
bed
black
blood
cardio
cardiogram
cardiology
care
chart
clinic
closeup
computer
concept
death
diagnosis
ecg
ekg
electrical
electrocardiogram
emergency
equipment
exam
graph
graphic
health
healthcare
heart
hospital
illness
isolated
life
macro
medical
medicine
monitoring
paper
patient
people
printout
pulse
research
science
sick
technology
test
thermometer