aid
analyzing
arm
bank
blood
care
collection
coronavirus
disease
doctor
donation
drawing
examination
experiment
gloves
hands
health
healthcare
hospital
human
illness
infection
injecting
injection
introducing
laboratory
medical
medicine
needle
nurse
patient
people
person
pharmacy
prick
protection
rubber
sample
sampling
science
scientific
skin
suction
surgical
syringe
taking
test
treatment
tube
vein