Sentence examples for interventions are difficult from inspiring English sources

Given that RCTs of such interventions are difficult, we reviewed seven observational studies from PubMed and one interventional study from Cochrane clinical trials.

These multimedia interventions are difficult to perform and very expensive, but booklets or pamphlets are simple to use and inexpensive.

4) Complex health service interventions are difficult to evaluate.

However, complex interventions are difficult to implement, time-consuming and very labour-intensive.

WLES represent dynamical sets where behavior is unpredictable and policy interventions are difficult to assess [ 5].

However, intensive lifestyle modification interventions are difficult to sustain and costly to implement.

But compliance with these interventions is difficult for many producers and delaying the removal of calves from their dams and earlier return of heifers to the herd are common practices.

The most appropriate interval between interventions is difficult to evaluate based on the data analysis (and is absent from the literature); in our clinical practice the interval is based on the severity of stricturing at initial dilatation and clinical and cholangiographic results following intervention.

The efficacy of test/feedback interventions is difficult to discern at this point.

The impact of cancer screening interventions is difficult to evaluate (Adami et al, 2001).

Any causal relationship between the observed improvement and the interventions is difficult to assess.