この論文には以下のように129B6は使われていないから先生のおっしゃってるのはまた別のだろうね。
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Mice
C57BL/6-GFP transgenic mice [TgN(acro/act-EGFP)OsbC3-N01-FJ002] were kindly provided by Dr. Masaru Okabe (Osaka University) [4, 5]. BDF1, C57BL/6, and ICR mice were purchased from SLC (Hamamatsu, Japan).