analyzing
arm
bag
blood
care
caucasian
clinic
donate
donation
donor
expertise
giving
hand care
healing
health
hematologic
hospital
indoors
injecting
instrument
laboratory
life
lying
male
man
medical
medicine
needle
patient
person
public
receiving
science
serum
service
sterile
surgical
syringe
system
transfused
transfusion
tube
tubing
volunteer
volunteering