HPV vaccine concerns

A federal study appearing in this week's Journal of the American Medical Association details the after effects of more than 12,000 patients who have received Gardasil, a cervical cancer vaccine targeted at 9 to 26 year old girls.

The study found that many of the women suffered "adverse" affects after their shots, ranging from headaches to death.

This information has only fueld the debate about the controversial vaccine.

Dr. Marcela del Carmen, clinical director of the Gillette Center for Gynecologic Oncology at the Mass. General Cancer Center, has more.