A new treatment for a disease has improved significantly in 68% of patients in 12-month clinical trials, of which 43% have recovered. However, the commonly used treatments can also be used within 12 months.38% of patients are completely cured. Because the new treatment mainly selects those with more severe symptoms, some people think that the new treatment is more effective than the commonly used treatment. If the following are true, the most powerful questions that can be raised about these views are:. ['After the emergence of new therapies, patients with this disease still tend to use the original therapy.', 'The disease is often severe in the early stages but is relatively easy to treat.', 'Through lifestyle changes, many people can improve their condition and even recover even without medication.', 'Common therapies use four drugs in combination, but the new therapy uses only two drugs.']