Sentence examples for difficult to clearly ascertain from inspiring English sources

As noted by the authors, it is difficult to clearly ascertain the difference between genes that represent horizontal gene transfer (HGT), and those that are merely misplaced in phylogenetic trees based on the deep phylogenetic divergence of B. massiliensis and other genome-sequenced organisms.

Finally, with reference to Lepore et al.'s study, the exact point of clinical and radiographic fracture union is clearly difficult to ascertain with any reliability or reproducibility, particularly since patient follow-up was on a 2 monthly basis.

The importance of RF in RA is yet to be clearly ascertained.

The latter possibility is more difficult to ascertain in the in vivo situation and clearly more studies are needed to convincingly show that blockade of cytokines alter survival of eosinophils in vivo, as demonstrated in vitro.

It should be note that while these features clearly distinguish the response of rice from barley, it is difficult to ascertain if these features are the cause or the effect of inherent salt-sensitivity of rice.

score difficult to ascertain.

The net effect of their impact is difficult to ascertain.

How widespread these cases are is difficult to ascertain.

Basic Contradictions Just who David Chang is has been difficult to ascertain.

It is Iran -- not Iraq -- whose true policy on the issue has been difficult to ascertain.

It is difficult to ascertain from the volunteers which ones might seek such a role.