機器
adult
african
afro
american
background
black
check
concept
coronavirus
covid19
device
diagnosis
disease
exam
female
hand
health
healthcare
home
hospital
indoors
interior
measure
measurement
medical
millennial
modern
monitor
oximeter
oxygen
oxymeter
patient
people
pneumonia
problem
pulse
pulseoxymeter
pulseoxymetry
room
saturation
sick
symptom
technology
woman
young