Review Article

Essential Experimental Methods for Identifying Bonghan Systems as a Basis for Korean Medicine: Focusing on Visual Materials from Original Papers and Modern Outcomes

Figure 6

The DNA substances inside the Bonghan duct stained through a Feulgen reaction. The 1-2 μm granules (arrows) revealing the DNA content inside the subducts of a Bonghan duct at a rabbit’s abdomen surface, stained using a Feulgen reaction under a stereomicroscope [29].