Sentence examples for by several studies using from inspiring English sources

In this context, their accuracy and precision has been questioned by several studies using thermodilution or echocardiography as reference methods [25, 26].

The natural N- and C-termini, i.e., the given order of secondary structure segments, are critical for protein folding and stability, as shown by several studies using circularly permuted proteins, mutants that have their N- and C-termini linked and are then digested at another site to create new termini.

The ability of DCs to prime HIV-specific responses in vitro has previously been established by several studies using various antigen preparations, e.g. peptides, proteins, liposome complexed proteins and cDNA[11], [12], [13], [14] but not whole virions, the most physiologically relevant source of HIV-antigens.

These findings have since been confirmed by several studies using conventional MRI [ 38, 46, 48].

Sleep disruption is common in ICU patients and has been characterized by several studies using polysomnography (PSG) [ 1- 3].

It was expected that the highest gene expression to be detected would be at day 2 after instillation, as has been noted by several studies using GL67 as the gene carrier [ 31].

By contrast, several studies using less sensitive in situ hybridization methods for the detection of viral plus- and minus-strand RNA nonetheless provided evidence for much more robust HCV RNA replication levels [17], [18].

By now several studies using this protocol, but without the addition of TBI to the non-myeloablative chemotherapy regimen, have shown a highly consistent objective response rate of 40 50% of treated patients.

Longnecker et al. (2003) addressed this by comparing PCB exposure across several studies using median concentrations of the most prevalent PCB congener (PCB-153).

The activation of γδ T cells by bacterial metabolites has been demonstrated in several studies using bacterial extract and supernatants containing purified antigens [20], [22].

Along with one study that identified type of diabetes by national registry (5), several studies used the age of onset of diabetes (18– 24, 29, 29) as a proxy for a presumptive diagnosis of type 1 or type 2 diabetes (Tables 1 and 2).