Assessment of Medicare's imaging efficiency measure for emergency department patients with atraumatic headache.
Schuur JD, Brown MD, Cheung DS, Graff L, Griffey RT, Hamedani AG, Kelly JJ, Klauer K, Phelan M, Sierzenski PR, Raja AS. Assessment of Medicare's imaging efficiency measure for emergency department patients with atraumatic headache. Ann Emerg Med. 2012 Sep; 60(3):280-90.e4.