CHEMISTRY, BIOPHYSICS AND COMPUTATIONAL BIOLOGY Correction for “Effect of cholesterol on the molecular structure and transitions in a clinical-grade lung surfactant extract,” by Jenny Marie Andersson, Carl Gray, Marcus Larsson, Tiago Mendes Ferreira, and Emma Sparr, which appeared in issue 18, May 2, 2017, of Proc Natl Acad Sci USA (114:E3592–E3601; first published April 17, 2017; 10.1073/pnas.1701239114).
The authors note that Marcus Larsson should be credited for designing the research, contributing new reagents/analytic tools, and writing the paper. The corrected author contributions footnote appears below.
Author contributions: J.M.A., M.L., T.M.F., and E.S. designed research; J.M.A. performed research; C.G., M.L., and T.M.F. contributed new reagents/analytic tools; J.M.A., C.G., T.M.F., and E.S. analyzed data; and J.M.A., C.G., M.L., T.M.F., and E.S. wrote the paper.