3d
3d illustration
amine
atoms
benzene ring
biochemistry
biology
brain
carbon
catecholamine
chemical
chemistry
compound
computer generated image
control
dopamine
drug
education
formula
hormone
hydrogen
illustration
isolated
medication
medicine
metabolism
model
molecular
molecule
nervous system
neurotransmitter
nitrogen
norepinephrine
organic
oxygen
oxytyramine
paracrine
precursor
research
science
structural formula
structure
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