Blackboard with the chemical formula of Hydrocodone
Palabras clave
morphine,
painkiller,
blackboard,
chalk,
text,
signs,
write,
blackboard,
scripture,
handwriting,
letter,
lettering,
dark background,
written,
black,
illustration,
chemistry,
science,
drawing,
writing,
chemical,
formula,
molecular,
structure,
graphic,
structural,
scientific,
symbol,
molecular,
abstract,
technology,
research,
pattern,
medicals,
drug,
medicine,
substance,
pharmaceutical,
pharmacy,
remedy