Barnes P, Powell-Griner E, McFann K, Nahin R. CDC Advance Data Report #343. Complementary and Alternative Medicine Use Among Adults: United States, 2002. May 27, 2004.
Eisenberg study based on telephone survey of 1200 English speaking participants around the country
80% of people in developing countries use traditional medicine for their primary health care
$27 billion dollars – TOTAL
$12.2 billion - OUT OF POCKET