Premier Kathleen Wynne calls the under dosing of 990 chemotherapy patients in the province a "very worrisome'' situation.Wynne says her government will try to find out why it happened to patients at four southern Ontario hospitals -- some for as long as a year.
Officials say there was too much saline added to the bags containing the chemotherapy medications.
Health Minister Deb Matthews says experts have assured her the health risks from the watered down cancer drugs were minimal.
