| protraction disorder |
Primary dysfunctional labor.
출처:
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| protraction |
1. drawing out or lengthening. 2. extension or protrusion. 3. a condition in which the teeth or other maxillary or mandibular structures are situated anterior to their normal position.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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