"It would be far more productive to understand and strengthen the reasons behind this trend [of decreasing cervical cancer rates] than to expose an entire population to an uncertain intervention that has not been proven to prevent a single cervical cancer or cervical cancer death to date... [A] healthy 16-year-old is at zero immediate risk of dying from cervical cancer but is faced with a small but real risk of death or serious disability from a vaccine that has yet to prevent a single case of cervical cancer. . . . [T]here is genuine cause for concerns regarding mass vaccination in this country."