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