Disparity between Medicare claims for botulinum toxin for facial synkinesis/hemifacial spasm in Australian metropolitan and non-metropolitan areas - Zhang, Michael; Hayler, Raymond; Hussain, Gazi; Ngo, Quan; Low, Tsu-Hui (Hubert) (Australian Journal of Otolaryngology; Vol 8 (May 31, 2025): Australian Journal of Otolaryngology, 2025)