Human Direct Actions May Alter Animal Welfare

The following paragraph in the Methods subsection "Horses' spine examination" should read as follows: "In order to ensure the repeatability of these findings, evaluation was double performed by a second licensed chiropractor, equally blind to results and unknown to horses, on 10 out of the 19 horses. Comparison of evaluations (localisation of vertebral sites affected) revealed a 94.28% ± 3.69% agreement, therefore confirming reliability of the evaluation."

Source: journals.plos.org/plosone/article?id=10.1371/annotation/530e1439-fee8-434c-97b1-7d2cd87e2e46