VanderMolen L A, Steis R G, Duffey P L, Foon K A, Smith J W, Clark J W, Conlon K, Stevenson H C, Urba W J, Hartmann L C
Division of Cancer Treatment, National Cancer Institute, NCI Frederick Cancer.
J Natl Cancer Inst. 1990 Feb 7;82(3):235-8. doi: 10.1093/jnci/82.3.235.