In the article cited above, Results part of abstract has some error. It must be modified KRW instead of US $ as follow.

"In addition, the total cost for treatment of pneumonia was higher in the elderly compared to the non-elderly (KRW 2,088,190 vs. KRW 1,701,386, p < 0.001). Those with an underlying disease had a higher CURB-65 score (1.26 vs. 0.68, p < 0.001), were much older (mean age 71.24 vs. 64.24, p < 0.001) and had a higher mortality rate than those without an underlying disease (3.5% [n = 20] vs. 1.7% [n = 2], p = 0.558). The total per-capita medical fees were higher (KRW 2,074,520 vs. KRW 1,440,471, p < 0.001) and hospital LOS was longer (mean 8.38 days vs. 6.42 days, p < 0.001) in patients with underlying diseases compared to those without."

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