Kaiser maintains it has done nothing wrong and said it plans to "strongly" defend against lawsuits alleging otherwise.

More than 40% surveyed said the cash card played an important role in their decision, experts explained in JAMA Internal Medicine.

The administration said it studied the vaccine's safety in more than 3,100 children, and no serious side effects have been reported thus far.

The insurance giant alleged that 62% of claims involving the highest-paying ED codes didn't match medical records, according to documents filed Wednesday.

Road injuries, falls and urinary diseases accounted for the highest percentage of that total, according to new figures published in PLOS One.