Whitsett C, Turner W J, Lee T D, Dupont B
J Neurol Sci. 1976 Dec;30(2-3):417-20. doi: 10.1016/0022-510x(76)90145-3.
HLA typing was performed on 75 caucasian and 58 black patients with paralytic dementia hospitalized at 2 state mental institutions in New York. Serological testing was performed to confirm previous infection with T. pallidum. The caucasian patients showed an increase in B18(18.7% vs. 9.6% in controls). The black patients showed an increase in A2 (48.3% vs. 28.7% in controls) and an increase in B7 (27.6% vs. 15.7% in controls.
对在纽约2家国立精神病院住院的75名白种人和58名患有麻痹性痴呆的黑人患者进行了HLA分型。进行血清学检测以确认既往梅毒螺旋体感染情况。白种人患者中B18出现增加（18.7%，而对照组为9.6%）。黑人患者中A2出现增加（48.3%，而对照组为28.7%），B7也出现增加（27.6%，而对照组为15.7%）。
