Variation in proficiency testing performance by testing site.

Autor: Stull, Tina M., Hearn, Thomas L., Hancock, John S., Handsfield, James H., Collins, Carlyn L., Stull, T M, Hearn, T L, Hancock, J S, Handsfield, J H, Collins, C L

Publikováno v: JAMA: Journal of the American Medical Association; 2/11/98, Vol. 279 Issue 6, p463-467, 5p, 2 Charts, 1 Graph