Abstract
Subsequent to the publication of the above article, the authors have realized that errors were introduced into Fig. 4 at the typesetting stage. Essentially, in Fig. 4B, the P‑value should have read as "P=0.13" (not as 0.013), and in Fig 4D, the labels for OBP- and OBP+ were set the wrong way around. The correct version of Fig. 4, as originally submitted, is shown opposite. The Editor apologizes to the authors for introducing these errors into their figure, and to the readership for any inconvenience caused. [the original article was published in Oncology Reports 41: 643-649, 2019; DOI: 10.3892/or.2018.6813.