Welander, U Layer thickness in rotational panoramic radiography: some specific aspects. [electronic resource] - Dento maxillo facial radiology Aug 1989 - 119-24 p. digital Publication Type: Journal Article ISSN: 0250-832X Standard No.: 10.1259/dmfr.18.3.2637877 doi Subjects--Topical Terms: Radiography, Panoramic--methods