方法：分别用胰蛋白酶消化法及胃蛋白酶-胰蛋白酶联合消化法制备视网膜血管铺片，比较铺片成功率。
METHODS: Retinal vascular preparations were performed by using trypsin digestion and pepsin-trypsin digestion technique respectively.
方法：分别用胰蛋白酶消化法及胃蛋白酶-胰蛋白酶联合消化法制备视网膜血管铺片，比较铺片成功率。
METHODS: Retinal vascular preparations were performed by using trypsin digestion and pepsin-trypsin digestion technique respectively.
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