Sentence examples for specimens were unable from inspiring English sources

Finally, some patient serum specimens were unable to be obtained on some days.

The use of the IS481 target instead of species-specific targets in a clinical setting is further supported by data from a recent study of Spicer et al. He reported that 222 out of 520 (42.7%) IS481 positive nasopharyngeal specimens were unable to be confirmed as having B. pertussis or B. holmesii by species specific PCR assays.

In the oldest specimens, they were unable to obtain any evidence of DNA.

Importantly, in all three specimens we were unable to detect mouse mtDNA despite the use of a highly sensitive assay, which suggests that the source of XMRV is unlikely the result of contamination with mouse DNA.

Due to the limited availability of the clinical tissue specimens, we were unable to evaluate AKT and ERK1 expression in the primary CRCs and liver metastases tissues - future studies are required to address these questions.

While we observed EGFR DNA sequence mutations and increases in EGFR and HER2 gene copy number in several of our specimens, we were unable to statistically correlate the presence of any of these molecular features with response.

We were able to reconstruct the complete mitogenome of one of the Late Pleistocene specimens, but we were unable to assign it to any of the previously published brown bear mitogenome clades.

Attempts were made to determine whether these cells had increased testosterone levels using mass spectroscopy; however, because of in vitro culture conditions with large quantities of steroids that can passively cross the cell surface, the system was saturated while preparing specimens, and we were unable to determine intracellular levels with accurate sensitivity.

The first collections made of the mushroom were of young, immature specimens, from which authors were unable to obtain spores for examination.

In addition, because prenatal maternal blood and umbilical cord blood specimens were unavailable, we were unable to assess the potential impact of prenatal exposures.

Though we were able to collect several specimens of Holopedium sp. we were unable to obtain sequences for these specimens, and so they are not included in any genetic analyses.