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EXHIBIT ID: OB_C_0515

OA Presentation vs. OP During Labor

OA Presentation vs. OP During Labor

Sagittal view of the fetus in utero comparing Occiput Anterior Presentation with Occiput Posterior Presentation.

birth ob obgyn gynecology obstetrics OB_C_0515 occiput anterior OA posterior OP presentation sagittal fetus stations delivery labor