Unfortunately, it was not possible to perform direct measurements of the skull of this bear (Supplementary Table 1).
In practice, this study used publicly available genomic data generated elsewhere and, therefore, it was not possible to perform alternative genomic approaches.
As the animals were found dead it was not possible to perform gross necropsy.
It was not possible to perform simultaneous measurement of the SUVmax in two patients.
Given the dimensions and uniqueness of the samples from the paintings, it was not possible to perform replicate analysis on different sample aliquots, and thus it was not possible to perform the t test.
In addition, it was not possible to perform in either of the two patients any investigation on ocular inflammation.
Given the great heterogeneity in the already reported studies, it was not possible to perform a formal metaanalysis.
2 It was not possible to perform the second cycle of searches in ACM Digital Library because of a change in the interface of this search engine.
Finally, M-N VP250/16 Nucleosil 100-5C18 column was selected, using two mobile phases as it was not possible to perform a gradient.
The probing of conventional implants was not possible to perform due to the length of the prosthesis, as they were not removed in the study.
While it was not possible to perform metabolite and kinetic analysis at this stage, further work aiming to explore EFB scaffold variants could benefit from such data.
