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. 2020 Dec 18;20(83):e261–e267. doi: 10.15557/JoU.2020.0046

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© Polish Ultrasound Society

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Fig. 7. — Ultrasound (Philips Epiq 5) longitudinal plane of normal labial glands (thin arrows); orbicularis oris (bold arrows); lip mucosa (arrow head); teeth (asterisk)