PROFILE Correction for “Profile of Sérgio Ferreira,” by Philip Downey, which appeared in issue 49, December 9, 2008, of Proc Natl Acad Sci USA (105:19035–19037; first published December 4, 2008; 10.1073/pnas.0811464106).
The authors note that on page 19035, first paragraph, line 4, the statement “Sérgio Ferreira, who was elected as a Foreign Associate of the National Academy of Sciences in 2006 …” should instead read “Sérgio Ferreira, who was elected as a Foreign Associate of the National Academy of Sciences in 2002 …”.