内容来自：http://health.yahoo.net/articles/healthcare/best-hospitals-2010-11-honor-roll

The Honor Roll requirements were so stiff that 99.7 percent of all centers in the nation were excluded. A hospital had to be ranked in at least six specialties, but ranking alone was insufficient for inclusion. It also had to have an extremely high score (in statisticians' terms, at least 3 standard deviations above the mean). That earned 1 point per specialty. Reaching the top of the Honor Roll called for even higher scores (4 or more standard deviations above the mean), earning 2 points, in far more specialties. The highest-ranked hospitals on the Honor Roll, which is ordered by points, had high scores in 15 of the 16 specialty rankings. Johns Hopkins stands at No. 1—as it has for the last 20 years.