Medical Sciences Correction to Supporting Information for “Transient receptor potential channel TRPC5 is essential for P-glycoprotein induction in drug-resistant cancer cells,” by Xin Ma, Yanfei Cai, Dongxu He, Chang Zou, Peng Zhang, Chun Yin Lo, Zhenyu Xu, Franky L. Chan, Shan Yu, Yun Chen, Ruiyu Zhu, Jianyong Lei, Jian Jin, and Xiaoqiang Yao, which published September 17, 2012; 10.1073/pnas.1202989109 (Proc. Natl. Acad. Sci. U.S.A. 109, 16282–16287).
The authors note that Fig. S4 in the SI Appendix appeared incorrectly. The SI Appendix has been corrected online.