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The clinical application of these observations is uncertain however and the clinical ef®cacy of selective monitoring of vascular bed resistance is unproven.
With respect to both, one might reply: perhaps true, but as yet unproven.
Clearly, unpicking the causal links requires a more searching and focused enquiry if it is to move beyond generating new but unproven hypotheses.
Therefore, although pharmacological agents may be indicated on clinical grounds for co-morbid psychiatric illness, their efficacy is largely unproven.
Adipokines probably have a role in altering insulin action in disease states such as sepsis, but their role outside such states remains unproven in humans.
The curious question emerged that why, if these therapies were unproven in their clinical effectiveness, were they so powerfully dangerous to cancer patients?
However, the author does seem to perpetuate another unproven assumption, viz. that a selection procedure must be based on a dichotomous distribution.
The stability and reproducibility of these results remains unproven.
Screening tests of unproven effectiveness can cause definite harm and are often expensive, especially when performed on large numbers of people.
Similar options might be considered for genetic tests of compelling worth and promising, but yet unproven, effectiveness, or uncertain effects.
However, because there is not a direct correlation between the tumor location and the placement of the mastectomy scar, the utility of the scar boost remains unproven [29].
He prefers to analyse what workers actually did to ' ' organise themselves in opposition to employers and the state, ' ' rather than use abstract and unproven models of false consciousness or exceptionalism.
Sizeable proportions mentioned unproven or ineffective methods (douching 20%; spermicides 16%), three respondents (3%) mentioned sitting in hot water, and two respondents each (2%) mentioned saccharine and medroxyprogesterone.
The agenda calls for greater collaboration in identifying outmoded technologies still in widespread use; current technologies that are unproven, ineffective or cannot be cost-justified; and effective technologies currently underutilized.
However, the widely held belief that imitation is correlated with high copying fidelity remains unproven and several nonhuman species have traditions over many generations without imitation.
