I agree that is part of the issue, but not the whole. Efficacy is a problem with China's domestic product.[1] [1] https://www.ft.com/content/729f1dc0-32d1-42c9

I agree that is part of the issue, but not the whole. Efficacy is a problem with China's domestic product.[1] [1] https://www.ft.com/content/729f1dc0-32d1-42c9-bb62-63a41f1e8de2 https://www.ft.com/content/729f1dc0-32d1-42c9-bb62-63a41f1e8...