308 Critical Care August 2005 Vol 9 No 4 Michelet et al. After publication of this work [1], we noted that we inadvertently failed to add the registration number of this randomised controlled trial. An International Standard Randomised Controlled Trial Number (ISRCTN) has been granted and the title of the manuscript should read as follows: Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study [ISRCTN67999735]. References 1. Michelet P, Roch A, Gainnier M, Sainty JM, Auffray JP, Papazian L: Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study. Critical Care 2005, 9:R251-R257. Correction Correction: Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study Pierre Michelet, Antoine Roch, Marc Gainnier, Jean-Marie Sainty, Jean-Pierre Auffray and Laurent Papazian Service de Réanimation Chirurgicale, Hôpitaux Sud, Marseille, France Corresponding author: Pierre Michelet, pierre.michelet@mail.ap-hm.fr Published online: 18 May 2005 Critical Care 2005, 9:308 (DOI 10.1186/cc3739) This article is online at http://ccforum.com/content/9/4/308 © 2005 BioMed Central Ltd . Gainnier M, Sainty JM, Auffray JP, Papazian L: Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in. green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study Pierre Michelet, Antoine Roch, Marc Gainnier, Jean-Marie Sainty, Jean-Pierre Auffray. in patients with ARDS: a randomized crossover study. Critical Care 2005, 9:R251-R257. Correction Correction: Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green