[The history and role of the physician assistant (PA) and its utilization].
Noll
Reiko
R
Emergency Department, Hamilton Medical Center, Dalton, Georgia, USA.
D049673:History, 20th Century; D007564:Japan; D017060:Patient Satisfaction; D010823:Physician Assistants / Q000193:education / Q000266:history* / Q000706:statistics & numerical data*; D012380:Role; D014481:United States