adult
analyzing
arm
bag
ball
blood
body
bouncy
care
clinic
dna
donate
donation
donor
expertise
give
hand
hands
healing
health
healthcare
holding
hospital
indoors
injecting
injection
laboratory
male
man
medical
medicine
men
needle
patient
receiving
rubber
sample
science
serum
squeeze
sterile
syringe
test
transfused
transfusion
vial
volunteer