If these factors seem to tip in Mrs. Clinton's favor, it may be simply a matter of her difficult news being out earlier.
When paying customers aren't talking, the operators talk themselves, as a matter of experiment, reading difficult words in varying intonations to see how they go through the ether.
The case ultimately comes down to a matter of intent, something famously difficult to prove.
Answering the second is, for the moment, largely a matter of statistics -- but difficult, because the numbers are so vague.
However, possible bone toxicity of long-term, low-dose MTX treatment in humans remains a matter of debate and is difficult to demonstrate in cross-sectional [ 36, 37] or longitudinal studies [ 38].
As most readers of this journal will know, whether this hypothesis can be applied to the human brain remains a matter of controversy and a difficult question to address, given the inability to perform the same types of experiments that have clarified the validity of the hypothesis in other species.
These taxes are not a matter of public record; they are difficult to estimate, Mr. Tellenne said.
What is arguably the story's climax the discovery of Clinton's Madison Guaranty billing records, which had mysteriously gone missing becomes, in Clinton's version, simply a matter of poor housekeeping: "It was difficult to convey the disarray we had lived with ever since moving into the White House".
As a matter of fact, it is not difficult to see that d is a metric on (mathcal{M}) and that the metric space ((mathcal{M},d)) is complete.
This feature of cancellability is, however, still a matter of dispute as it is difficult at present to decide between the rival views (i) that a particular GCI arose and was subsequently cancelled or (ii) did not arise at all due to being blocked by the context.
