title: Correction: Direct Measurements of Oxygen Gradients in Spheroid Culture System Using Electron Parametric Resonance Oximetry.
abstract: [This corrects the article DOI: 10.1371/journal.pone.0149492.].
authors.forename: Laura M
authors.initials: LM
authors.lastname: Langan
authors.forename: Nicholas J F
authors.initials: NJ
authors.lastname: Dodd
authors.forename: Stewart F
authors.initials: SF
authors.lastname: Owen
authors.forename: Wendy M
authors.initials: WM
authors.lastname: Purcell
authors.forename: Simon K
authors.initials: SK
authors.lastname: Jackson
authors.forename: Awadhesh N
authors.initials: AN
authors.lastname: Jha