1. Growth of human tumour cell colonies from biopsies using soft-agar techniques;Courtney;Br J Cancer,1978
2. Primary bioassay of human tumor stem cells;Hamburger;Science,1977
3. Methylcellulose clonogenic assay for solid human tumors;Cillo,1983
4. Quantitation of differential sensitivity of human-tumor stem cells to anticancer drugs;Salmon;N Engl J Med,1978
5. Prospective clinical trial of a human tumor cloning system;Von Hoff;Cancer Res,1983