Unfortunately, this made it impossible to validate the diagnosis on the basis of the primary radiographs.
EECR mixtures cannot simulate the concentration diversity and mixture ratio diversity of mixtures in the real environment, and it is impossible to validate the GCA.
While it is impossible to validate the function of the putative TATA boxes in silico, it should be pointed out that the TATA box found around 400 nucleotides downstream of the 5′ LTR end is highly conserved in all the 14 complete Atlantys LTRs isolated from the other Oryza species (Fig. 5).
Although we should mention that it is impossible to validate the results with the same study set-up since electrophysiological recordings can't be performed under medetomidine anesthesia.
It is often difficult, or impossible, to validate the accuracy of clinical annotations.
For a reader, it is currently impossible to validate the observation about SETH.
Furthermore, it is impossible to validate the claim 'life saving intervention' in a formal way: Should one withhold the intervention, the patient would die if the claim that the life-saving intervention was indeed correct.
Since it is virtually impossible to validate the various eGFRs in large population based samples of oldest old people by measuring GFR, for example by creatinine or inulin clearance, it is of great importance to determine the best measure of GFR in older people.
Unfortunately, the lack of large-scale protein interaction data on S. meliloti make it impossible to validate experimentally this initial functional network.
This was impossible to validate, however.
