NICE has backed NHS use of natalizumab, a key treatment option that is safe for use in pregnancy, for more patients with multiple sclerosis. NICE has said Biogen's Tysabri can now be used by the NHS ...

Welcome to Smithsonian Open Access, where you can download, share, and reuse millions of the Smithsonian’s images—right now, without asking. With new platforms and tools, you have easier access to ...