Detection of Treponema pallidum in tissue: a comparative study of the avidin-biotin-peroxidase complex, indirect immunoperoxidase, FTA-ABS complement techniques and the darkfield method

Abstract
Lee WS, et al. Yonsei Med J. 1991 Dec;32(4):335-341. http://dx.doi.org/10.3349/ymj.1991.32.4.335