8 Although I accept that some drugs can be used on animals and humans, this does not mean that they have to be tested on animals in the first place when alternative methods are available. Alternative methods do work. Various groups have been set up to put money into other ways of researching. For example the Dr. Hadwen Trust has shown how human cartilage can be grown in test tubes to study rheumatism. Similar research is being done into cancer and multiple sclerosis. Tests can be done on bacteria to see whether a chemical will cause cancer. There is even a programme of volunteer human researchers, where people suffering from illnesses offer to help in research.