title: Study: Strict X-ray collimation can increase dose in facial bone examinations.
mesh_terms: D005123:Eye / Q000000981:diagnostic imaging*; D005147:Facial Bones / Q000000981:diagnostic imaging*; D006257:Head / Q000000981:diagnostic imaging; D006801:Humans; D011829:Radiation Dosage; D011859:Radiography; D014965:X-Rays