addict
addiction
anesthetic
arm
background
caucasian
closeup
doctor
dose
drugs
equipment
hand
health
healthcare
holding
hospital
human
indoors
inject
isolated
laboratory
liquid
macro
male
medical
medicine
narcotic
needle
object
one
person
plastic
preparation
prick
procedure
pushing
science
serums
sharp
syringe
therapy
vaccination
vaccine
vertical
white