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Abstract. We report here a case of a primitive neuroectodermal tumor involving the frontal skull base in a 5-month-old male infant. He presented with rapidly progressing exophthalmos on the left side. Preoperative magnetic resonance imaging revealed a well-demarcated, enhanced mass of 6cm in diameter in the intradural extra-axial frontal region. The tumor was totally removed by surgery. Pathological...
Stability constants of humic acid complexes of 19 elements, Be, Ca, Sc, V, Cr, Mn, Fe, Co, Zn, Ga, Sr, Y, Ba, Ce, Eu, Gd, Tm, Yb, and Lu, were determined simultaneously using the multitracer technique. Since the results were obtained under an identical method, model, and sample, we could compare the stability constants of humate with various metal ions. As a whole, humate complex of ions having more...
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