Media type: E-Article Title: Letter to the editor Contributor: MacPhail, Laurie; Greenspan, Deborah; Greenspan, John S. imprint: Elsevier BV, 1993 Published in: Oral Surgery, Oral Medicine, Oral Pathology Language: English DOI: 10.1016/0030-4220(93)90003-m ISSN: 0030-4220 Keywords: General Dentistry ; Pathology and Forensic Medicine Origination: Footnote: