Patients protest Chinese doctor's risky surgery

At one moment, the Chinese urologist seemed to be at the height of his career: He had invented a surgical procedure to help patients overcome incontinence and was training doctors in America and elsewhere. The next, Dr. Xiao Chuanguo was in handcuffs, confessing that he'd hired thugs to attack two persistent critics who called him a fraud.

The scandal has shocked the public and prompted calls for better regulation of medical research in China, where such fraud and misconduct are widespread. Yet, Xiao's case is not such a clear-cut illustration of the problem. More than 30 urologists from the United States, Canada, France, India and other countries issued a letter in support of the U.S.-trained surgeon after his arrest late last month.