Author Correction: Super-achromatic monolithic microprobe for ultrahigh-resolution endoscopic optical coherence tomography at 800 nm

The original version of this Article contained an error in the third sentence of the `Animal studies' section of the Methods, which incorrectly read `The sheep anesthesia was initiated with ketamine (25 mg kg^-1) and then maintained by continuous intravascular (IV) infusion of propofol (800 mg kg^-1 h^-1) during imaging.' The correct version states `800 µg kg<sup>-1</sup> h<sup>-1</sup>' in place of `800 mg kg^-1 h^-1'. This has been corrected in both the PDF and HTML versions of the article.