analyzing
arm
bag
ball
blood
bouncy
care
caucasian
clinic
donate
donating
donation
donor
expertise
giving
hand
healing
health
hemotransfusion
hospital
indoors
injecting
injection
instrument
laboratory
life
male
man
medical
medicine
needle
patient
person
receiving
red
rubber
sample
science
serum
squeeze
sterile
surgical
syringe
test
transfused
transfusion
tube
tubing
vein
volunteer