Whither cancer research?
D000236:Adenoma / Q000139:chemically induced; D000818:Animals; D003937:Diagnosis, Differential; D008175:Lung Neoplasms / Q000139:chemically induced; D051379:Mice; D009369:Neoplasms / Q000175:diagnosis; D009374:Neoplasms, Experimental; D051381:Rats; D001749:Urinary Bladder Neoplasms / Q000139:chemically induced