adult
analysis
biotechnology
blood
blue
checking
chemical
chemical laboratory
clinical
clinical test
closeup
coronavirus
covid19
development
diagnostic
doctor
drugs
epidemic
flask
glass
glove
hand
holding
infection
laboratory
medical
microbiology
mixing
one
pandemic
people
person
reaction
red
research
rubber
science
solution
study
technician
test
trial
unrecognizable
vaccine
virus
定額
Chemical laboratory. Clinical test. Drugs trial. Technician hand in blue medical rubber glove holding glass flask with red solution mixing checking reaction.の素材 [FY310208068321]
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