Keywords: Extraction laboratory (1).jpg Anti-cancer drugs can now be tested on human cancer cell lines in vitro for cytotoxicity and effectiveness without the use of animals In an assay color changes in the wells show what proportion of cultured cancer cells remain alive after they have been exposed to the test drug The plates are read by computer and results are automatically sent to a centralized computer where they are converted into graphic reports Topics/Categories Science and Technology -- Medical Devices Type Color Photo Source Frederick Cancer Research Facility Bill Branson Photographer 2298 1987-10 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Bill Branson Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ |