Israel Rubinstein, MD
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To the Editors: Our article had two typographic errors (1). The first was in the abstract under Design. The sentence should have read, "Case-control study, using nonobese, age- and height-matched nonsmokers." The second error was in the second line of the legend to Figure 1. It should have read "V50 = forced expiratory volume at 50% of vital capacity."
Rubinstein I. Correction: Error in Article on Airflow Obstruction. Ann Intern Med. 1990;113:334. doi: 10.7326/0003-4819-113-4-334_2
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Published: Ann Intern Med. 1990;113(4):334.
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