| http://www.w3.org/ns/prov#value | - By Caroline CopleyZURICH (Reuters) - Pharmaceutical companies including Switzerland's Novartis and Roche are among those developing a treatment for a specific type of lung cancer, a field that is now so crowded it may impact profits.A better understanding of the cause of tumors has drawn resources into cancer research at the expense of antibiotics and cardiovascular disease but over-concentration
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