TY - GEN AU - Umbach,G E AU - Spitzer,G AU - Drewinko,B TI - Testing methotrexate sensitivity of human malignancies in the human tumour stem cell assay SN - 0305-7399 PY - 1984///0807 KW - Colony-Forming Units Assay KW - False Negative Reactions KW - Hematopoietic Stem Cells KW - drug effects KW - Humans KW - Methotrexate KW - pharmacology KW - Tumor Stem Cell Assay N1 - Publication Type: Comparative Study; Letter ER -