Sentence examples for mainly not possible from inspiring English sources

Because native-eye findings of the endoscopic image are very similar and histological confirmation is mainly not possible by endoscopic biopsy only, medical specialists have great difficulty in classifying them correctly.

When ophthalmoscopy is not possible, mainly due to opacification of the transparent media (e.g., mature cataract or vitreous haemorrhage), US can guide the ophthalmologist in diagnosing disease and choosing treatment.

Earlier, adequate morphologic examination of the choroid using OCT was not possible mainly due to the presence of pigments in the RPE layer which attenuate the incident light and also due to its posterior location.

Nevertheless, in 24/41 patients, attempts to set up TI failed mainly because it was not possible to expose the glottis opening (60%) or due to airway obstruction with vomit or blood (39%).

An individual prediction of a migraine attack based on meteorological data was not possible, mainly as a result of the small prevalence of attacks.

Other limitations include the fact that in most of the efficacy trials blinding of assessment was not possible mainly because the study design.

Some of the data reported in six studies were deemed unclassifiable, mainly because it was not possible to separate the head and neck cancers studied into constituent cancer types.

Free roaming is mainly used when line guidance is not possible, namely in rescue operations.

"An exact prediction of how fast CO2 will increase is not possible anyway — but mainly because we do not know how the emissions evolve, not because of uncertainties in the carbon cycle," Aeschbach-Hertig writes.

Invalid blood loss measures, which mainly occurred when monitoring visits were not possible because of poor weather conditions, were excluded from our analysis.

As the descriptive studies presented results mainly in aggregate form, it was not possible to further investigate the effect of LGV genotype or rectal and non-rectal infection on the association between HIV and LGV.