4Hook EW, Marra CM:Acquired syphilis in adult. NEngl J Med 1992, 326:1060 - 1065
5Davis LE, Schmitt JW, Clinical significance of cerebrospinal fluid tests for neurosyphilis. Ann Neurol, 1989,25:50- 55
6Centers for Disease Control and Prevention: NCFH, STD and TB prevention: 1998 Guidelines for treatment of sexually transmitted diseases. MMWR 1998:47
7Wilcox RR:A Texbook of Venereal Diseases and Treponematoses.London, Heinemann Medical Books, 2nd Ed, 1964
8Lukehart S, Hook EW, Baker-Zander SH, et al, Invasion of the central nervous system by Treponema pallidum: implication for diagnosis and therapy. Ann Intern Med 1998,109:855-862
9Tramont E: Treponema pallidum. Principles and Practice of Infectious Disease. Mandell GC,Bennett JE, Polin R, eds. New York.Churchill-ivingstone,5th Ed,2000,pp 2474-2489
