Think back a moment, Mr. Wynar. Your precious animal tests deemed it safe for pregnant women, yet it was pulled from the market after causing horrific birth defects throughout the world. Alexander Fleming knew better than to waste his time on useless animal experiments, since penicillin poisons cats and guinea pigs. The key to curing cancer, tumors, and the like is clinical research. And the strongest advocates of this are doctors.
Doctors are the ones who see cancer patients and poisoning victims on a daily basis.
If we ever hope to cure cancer and other fatal illnesses, we need to devote more time and money clinical research and advanced non-animal techniques. Apparently you haven't realized yet that 65 Nobel Prizes were awarded to animal researchers because no viable alternatives were available at that time. Unfortunately, modern scientific advances have rendered them a thing of the past. Wake up and smell the coffee, Mr. Wynar. Animals do not exist solely for our convenience.