Ulbright, T.M.

teratoma tumor pluripotent tissue formation development cancer type i teratomas differentiation germ cell element type ii gcts nature origin study safety yolk sac elements sacrococcygeal assessment teratoma formation diploid yolk sac tumor feature neoplasm number type i safety assessment sacrococcygeal teratomas germ cells tumor formation assay table marker therapy ec cells graft population –derived expression hes cells perspective detection germ cell tumors embryonal carcinoma animal protein seminoma range imprinting monitoring growth volume factor pluripotent cells mirna change patient method genomic cell lines malignancy cells dev september biotechnology analysis america phenotype behavior germ cell tumours pathol type i gcts 30  pattern germ cell development right structure class carcinoma lesion embryonal