Sentence examples for unfortunately it is difficult from inspiring English sources

Unfortunately, it is difficult both to identify informative censoring and to assess its impact.

Unfortunately, it is difficult to determine what may be the cause of the symptoms you describe.

Unfortunately, it is difficult to draw any conclusions in the aggregate.

Unfortunately, it is difficult for data scientists to quantify the potential of these different products.

Unfortunately it is difficult to identify compounds that have unfavorable toxicity properties before conducting clinical trials.

Unfortunately, it is difficult to completely replace the traditional Ni anode owing to its outstanding reactivity with low cost.

Unfortunately it is difficult to determine precisely how the latest breed of diesel cars compare with petrol ones, pollution-wise.

Unfortunately, it is difficult to study and little is known about it beyond a few quantities that are protected by supersymmetry.

Sedation can be used to relieve anxiety and manage behaviour in children, unfortunately it is difficult to determine from published research which agents, dosages and techniques are effective.

Unfortunately it is difficult to get repeatable results because of the inherent variability in the properties of bast fibres compared to glass fibres.

Unfortunately, it is difficult to find publications of them applied to the models Weibull, very useful in contexts such as maintenance.