Photodynamic therapy-in which drugs that become toxic when exposed to light are used to destroy tumours-is a highly promising cancer treatment. But it is effective only against relatively flat and
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/photosensitive-drugs-advance
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-times-london
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health