хойд Америкийн бутлуур
Хоёрдогч Hummer бутлуур. Chordoma - Wikipedia. Chordoma is a rare slow-growing neoplasm thought to arise from cellular remnants of the notochord.The evidence for this is the location of the tumors (along the neuraxis), the similar immunohistochemical staining patterns, and the demonstration that notochordal cells are preferentially left behind in the clivus and sacrococcygeal ...
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