Sensors Sensors 1424-8220 Molecular Diversity Preservation International (MDPI) 10.3390/s90100377 sensors-09-00377 Correction Vasić, V. et al. Na+,K+-ATPase as the Target Enzyme for Organic and Inorganic Compounds. Sensors 2008, 8, 8321-8360 VasićVesna1* MomićTatjana1 PetkovićMarijana1 KrstićDanijela2 Vinča Institute of Nuclear Sciences, Department of Physical Chemistry, 11001 Belgrade, Republic of Serbia; E-Mails: momict@vinca.rs. (T. M.); marijanapetkovic@vinca.rs (M. P.) Institute of Medicinal Chemistry, University School of Medicine, University of Belgrade, Višegradska 12, Belgrade, Republic of Serbia; E-Mail: krsticdana@yahoo.com (D. K.) Author to whom correspondence should be addressed; E-Mail: evasic@vinca.rs (V. V.); Tel.: +381 11 340 8287; Fax: +381 11 244 7207 2009 8 1 2008 9 1 377 377 17 12 2008 © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. 2009

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We found that reference 94 was incorrectly cited in our paper published in Sensors recently [1]. Therefore, reference 94 is corrected as follows:

94. Van Quaquebeke, E.; Simon, G.; Andr, A.; Dewelle, J.; El Yazidi, M.; Bruyneel, F.; Tuti, J.; Nacoulma, O.; Guissou, P.; Decaestecker, C.; Braekman, J.C.; Kiss, R.; Darro, F. Id entification of a novel cardenolide (2″-oxovoruscharin) from Calotropis procera and the hemisynthesis of novel derivatives displaying potent in vitro antitumor activities and high in vivo tolerance: structure-activity relationship analyses. J. Med. Chem. 2005, 48, 849-56.

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