That was the finding of a 2012 study of over 14 million hospital admissions; other, more restricted, studies have reinforced the point.
As for part 1, we restricted studies to those based in adults from predominantly Caucasian populations.
However, technological and experimental limitations have restricted studies in mice due to their smaller cochlea.
This has severely restricted studies in both basic and applied microbial ecology.
Confounding caused by procedural factors should be eradicated because we restricted studies to randomised controlled trials.
Narrowly restricted studies with questionable external validity need not be the norm.
Additional limits placed on the search strategy restricted study participants to human and the language to English.
In a third sensitivity analysis, we restricted study participants to those with an inpatient diagnosis of T1D (n = 39,612; 95.3%).
Allows conditions restricting studies to be imposed on those given limited leave to enter or remain in the UK.
However, the large EEG artifacts induced during fMRI have precluded simultaneous EEG and fMRI recording, restricting study design.
