How to avoid eyelid ptosis when injecting botulinum toxin into the corrugators.
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D001763:Blepharoptosis / Q000139:chemically induced / Q000517:prevention & control*; D019274:Botulinum Toxins, Type A / Q000008:administration & dosage / Q000009:adverse effects*; D004305:Dose-Response Relationship, Drug; D005138:Eyebrows / Q000187:drug effects*; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular
D019274:Botulinum Toxins, Type A