Linkage Analysis Neurofibroma, NFl RFLP Ⅲ 2345678 3.0kb 1kb 4.7kbLinkage Analysis Neurofibroma, NF1 RFLP Ⅰ Ⅱ Ⅲ 1 2 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 3.0 kb 1.7 kb 4.7 kb