хэвтээ хоёрдогч цохилтот бутлуур jama
Chordoma is a rare slowgrowing neoplasm thought to arise from cellular remnants of 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 .ашигласан ...