方法：用自身前-后对照研究设计方案。
Method: a before-after study in the same patient was applied.
同时配对比较初治骨关节结核患者治疗前与治疗1月后外周血T淋巴细胞亚群的变化。结果：共有52例初治骨关节结核、18例恶性骨肿瘤及52例健康对照纳入本研究。
T lymphocyte subsets in Peripheral Blood of new cases with osteoarticular tuberculosis were compared with those from 18 patients with malignant primary or metastatic bone tumor and 52 normal controls.
采用健康成年鸡的自身对照实验，研究鸡的前背阔肌（ALD）和后背阔肌（PLD）失神经后胰岛素受体的改变。
The changes in insulin receptors were studied in chick anterior latissimus doris (ALD) and posterior latissimus doris (PLD) 4 weeks after denervation.
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