lea ament, left, and tamara nunley talk about the care their team provided for helen and robert valenzuela at st. jude medical center in fullerton. (scott smeltzer / staff photographer)
.
.
"in contrast, a mechanical mod is unregulated and works simply by drawing the power of a battery to an atomizer," he said.
.
it's not clear how well they'll stack up against current migraine therapies, because head-to-head studies haven't been done.
.
.