In the above article [Kalgutkar AS, Vaz AD, Lame ME, Henne KR, Soglia J, Zhao SX, Abramov YA, Lombardo F, Collin C, Hendsch ZS, and Hop CE (2005) Drug Metab Dispos33:243–253], an important reference associated with the Gaussian package (Materials and Methods, Computational Methods section, page 245) was omitted. The reference is as follows:

Frisch MJ, Trucks GW, Schlegel HB, Scuseria GE, Robb MA, Cheeseman JR, Montgomery JA, Vreven T, Kudin KN, Burant JC, et al. (2004) Gaussian 03, Revision B.04, Gaussian, Inc., Wallingford, CT.

The online version has been corrected in departure from the print version. The authors regret any confusion or inconvenience caused by this error.