Sentence examples for difficult to establish using from inspiring English sources

Although the administration would not say how contacts are being made, security analysts said links would not be difficult to establish using regional intermediaries before any direct dealings.

Strong non-preservation is difficult to establish using cross-tabulation approaches that rely on module assignment in the test data set.

All these points support the hypothesis that this is a causal relation, although this is difficult to establish using observational data.

This greater sensitivity may allow for detection of individual differences that would be more difficult to establish using non-computerised methods alone.

More subtle changes in cutaneous flow may be more difficult to establish using clinical observation, particularly in patients who are receiving vasoactive drugs secondary to their septic condition; this group of patients may be particularly at risk of critical peripheral ischaemia.

In fact, sometimes, it is difficult to establish invariants using variables corresponding to places or tokens.

These challenges make it difficult to establish an IVIVC using the 'continuous flow' method.

The respiratory dysfunction and spinal scoliosis of patients has made it difficult to establish muscle volumetry using underwater weighting 5 or bioimpedance analysis.

This makes it more difficult to establish a causal relationship using an observational study design, because the relationship may be explained by factors out of the investigator's control.

In general, the etiology of ALRI, and pneumonia in particular, remains difficult to establish [ 8, 9] using either insensitive or non-specific indirect methods such as blood culture, diagnostic serology and pathogenic detection of the upper airway [ 10].

While IAH/ACS frequently occurs after major abdominal surgery, its true incidence is difficult to establish, as earlier studies use different definitions for IAH and do not always differentiate between IAH and ACS.