title: Erratum to: Effect of gravity in long-term vitreous tamponade: in vivo investigation using perfluorocarbon liquids and semi-fluorinated alkanes.
authors: Department of Vitreoretinal Surgery, Center for Ophthalmology, University of Cologne, Kerpener Strasse 62, 50924, Cologne, Germany, jerzy.mackiewicz@am.lublin.pl.
authors: Jerzy
authors: J
authors: Mackiewicz
authors: Kristel
authors: K
authors: Maaijwee
authors: Christoph
authors: C
authors: Lüke
authors: Norbert
authors: N
authors: Kociok
authors: Wilfried
authors: W
authors: Hiebl
authors: Hasso
authors: H
authors: Meinert
authors: Antonia M
authors: AM
authors: Joussen