RT Journal Article SR Electronic T1 Diseases of the Mouth JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 264 OP 264 DO 10.1136/sti.31.4.264-a VO 31 IS 4 A1 A. F., YR 1955 UL http://sti.bmj.com/content/31/4/264.2.abstract AB