Sentence examples for and difficult to examine from inspiring English sources

And these fears appear to be unfounded: although it is complicated and difficult to examine, recent studies of the US population suggest that vaccination has not in fact caused the incidence of shingles to rise.

One child was very anxious and difficult to examine.

The locomotor system is often seen as complex and difficult to examine.

However, all null mutants of the RIDD pathway components are lethal and difficult to examine dendrite phenotypes.

However, ligaments, retinacula and fascia appear less light in colour and are difficult to examine.

These factors are often entangled and relatively difficult to examine or quantify independently from other failure modes.

Younger children are unable to provide a clear history and may be difficult to examine.

This was a pilote trial, and it is difficult to examine the same subjects more than three times.

Amongst the disadvantages of US are the facts that the examination is operator dependent and not reproducible and that it is difficult to examine the whole GI tract, with additional difficulties in obese children and in case of gas fullness of the bowel.

However, it can be seen from (23) that the energy efficiency, i.e., η n, varies with the transmit power P 1,n for given channel and device characteristics; thus, it is difficult to examine and compare the energy efficiency of various subchannels.

The data studied is always about only a limited (yet significant) sample of the population, and it is very difficult to examine whether this sample is biased or not, without additional information on the population of the country and the users of the mobile provider considered.