Sentence examples for is very difficult to clarify from inspiring English sources

In clinical materials it is very difficult to clarify the possible causality as well as cellular and molecular links between obesity and potential defective immune function.

Although most of patients in our study have the history of HBV infection, it is very difficult to clarify the relationship between natural history of the HBV infection and STAT3 activation.

In summary, it was very difficult to clarify the alterations in host cellular transcription in response to infection with internalization defective mutants.

It is very difficult to.

"It is very difficult to look at".

"It is very difficult to say.

It is very difficult to repeat this".

"It is very difficult to pursue quality.

And that is very difficult to change.

Because this is very difficult to do.

Banga: Steel is very difficult to stockpile.