The case of lawsuits over a faulty hip replacement device has called attention to what experts say is an ethical obligation on the part of physicians to sound the alarm when they learn about bad devices or questionable medical therapies. "Questioning the status quo in medicine is not easy," said Dr. Harlan Krumholz of Yale School of Medicine, and he says there are many forces such as fear of lawsuits that compel physicians to keep concerns to themselves. Published research is the traditional outlet for airing such issues, but the process can take time, so physicians suggest other outlets such as through medical societies.

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