RT Journal Article SR Electronic T1 Primary malignant melanoma of the oesophagus. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 82 OP 83 DO 10.1136/jcp.43.1.82-b VO 43 IS 1 A1 N S Simpson A1 R A Spence A1 J D Biggart A1 C H Cameron YR 1990 UL http://jcp.bmj.com/content/43/1/82.2.abstract AB