Methods The expression of CD28 and CD4 in peripheral blood of 20 healthy persons and 25 patients with UAP was detected by triad colour analytical technique with flow cytometry.

• 方法运用流式细胞仪三色分析技术检测25例不稳定型心绞痛患者在发病期和缓解期以及20名正常健康对照外周血标本CD28、CD4的表达。