Diagnostic and clinical implications of anorectal lymphogranuloma venereum in men who have sex with men: a retrospective case-control study.

van der Bij AK, Spaargaren J, Morré SA, Fennema HSA, Mindel A, Coutinho RA, de Vries HJC.
Clinical Infectious Diseases 2006; 42 (2): pp. 186 – 194.