adult
analysis
anemia
background
bag
bank
biology
blood
blood bank
blood donation
care
caucasian ethnicity
clinic
doctor
donate
donation
donor
equipment
group
hand
health
hematology
holding
hospital
human
indoors
isolated
laboratory
medical
medicine
nurse
occupation
patient
people
plasma
plastic
professional occupation
protective glove
red
research
sample
science
surgery
technology
test
transfuse
transfusion
white
women
working