Ossifying fibromas. (A report of four unusual cases).
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms; D005260:Female; D005350:Fibroma; D005624:Frontal Bone; D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms; D008875:Middle Aged