Darrell Issa actually said...

"A substantial amount. Some yes, some no. So a patient can say I want metal-free or Thimerosal-free?"

"Pregnant women are among the most vulnerable. They are the ones that have the most natural reluctance to take any and all substances that are not grown in the ground, cutoff and freshly cleaned."

"So those who might otherwise not get a shot should ask for a single dose, Thimerosal-free dose, and it should be reasonably available on request?"

"Just all pregnant women."