frontal palatine suture
frontal(frontal)apron-plain
trans-frontal sinus frontal approach
basal suture，humeral suture
Acute frontal sinusitis
ascending frontal bristle
ascending frontal bristles
bilateral frontal contusion and laceration
Bilateral frontal lobe laceration
blind frontal duplex structures
Bruise of bilateral frontal lobes
Buckley-Leverett frontal-drive method
Capillary Electrophoresis-frontal Analysis
Chronic frontal sinusitis
cold frontal precipitation