Sentence examples for difficult to obtain material from inspiring English sources

For obvious reasons, it is difficult to obtain material from age-matched healthy individuals.

For a number of orphan diseases that are, in particular, the target of gene transfer protocols, it is difficult to obtain material from a large cohort of patients with which to perform efficacy and safety studies.

For instance, it is not difficult to obtain materials whose properties are tailored to the specific application, even pointwise, thus leading to an optimisation of the material itself.

However, such material is limited in quantities and it is very difficult to obtain homogeneous material that is standardised from one preparation to the next or from different individuals.

It is difficult to obtain this material in the critically ill [ 2].

Data of Seisonidea have not been included in the present analysis as it is extremely difficult to obtain sufficient material for the preparation of a cDNA library.

Only a small number of cockroaches contain N. ovalis cells at a density of several hundred cells per hindgut, making it very difficult to obtain sufficient material for DNA/RNA isolation.

Since bamboo flowers are difficult to obtain as material for taxonomic and evolutionary studies, these protein sequences may be able to supplement morphological assessments of relatedness and serve as evidence for taxonomy both within Bambusideae and within the wider BEP monocot group.

Ronald Kuby, a lawyer for Mr. Rivera-Pitre, said that the continuing investigation by Mr. Vance's office had made it "difficult for us to obtain materials" related to the case from prosecutors.

Oo is a transient stage in mosquito, and it has been difficult to obtain sufficient parasite material for genome-wide analysis.

The reviewers reasonably assumed that this would be straightforward given the crystal structures, but in fact is very difficult to obtain 100% phosphorylated material.