In the article by Chatterjee, “The Swan-Ganz Catheters: Past, Present, and Future: A Viewpoint,” which appeared in the January 6/13, 2009, issue of the journal (Circulation. 2009;119:147–152), the following change should be made:
On page 147, right column, Drs Forssmann, Cournand, and Richards are reported as having received the Nobel Prize in medicine in 1941. The year in which they actually received the prize was 1956.
This change has been made to the current online version of the article. The author regrets the error.