adult
analyzing
blood
caucasian
clinic
danger
dna
doctor
exam
experiment
expertise
glove
gloved
healthcare
hospital
illness
injection
instrument
isolated
laboratory
mask
medical
medicine
needle
nurse
person
physician
practice
practitioner
procedure
professional
protection
protective
red
research
sample
sickness
specialist
squirt
syringe
test
therapy
treatment
uniform
white
working
workwear