Growing miniature versions of tumours and human organs could pave the way to better cancer treatments, researchers say. By taking cells from a diseased patient and creating a replica of their flesh in a lab, scientists could test which cancer drugs are most likely to work for them. The procedure can be done in less than two weeks and test hundreds of drugs without giving any to the patient until doctors have decided which could work best. This could mean individuals get more specific and tailored treatment instead of drugs which doctors only hope will work. Researchers at the University of California, Los Angeles (UCLA) tested the process on patients with high-grade carcinomas and ovarian cancers.