Exact(3)
We invited 50 experts to participate in this Delphi exercise, recognising that no optimal number of experts for such a study exists.
As an important counterpoint, a study exists showing a positive in vivo therapeutic efficacy for latrunculin A at a dose of 0.3 mg/kg using a sc-implanted A549 lung tumor xenograft mouse model which yielded a survival ratio of 146% for (number of survivors in treated group)/(number of survivors in control group) although the survivors were not completely tumor-free [ 10].
There are rare reports about the association between QOL and personal traits, but a study exists which has reported that the QOL of patients with mood or anxiety disorders is not only determined by the disease or the current health but is also shaped by personality traits [ 49].
Similar(57)
If more than one publication of a study existed, all reports of the study were grouped together under one name.
While a previous study exists evaluating rotator cuff insertions for tuberosity reduction, questions can be raised about its reproducibility [3].
A similar study exists for the Netherlands [ 10].
However, if a reliable previous study exists then (B1) and (D1) may be preferred (for example, if researchers are seeking to validate an existing study).
It is seldom the case that a high-quality study exists that can provide answers to everyday public health questions directly, and often we must rely upon imperfect surveillance data to guide policy and programmatic decisions.
A single interventional repletion study exists in the literature (49) describing a decreased post-transplantation malignancy risk associated with VDRA supplementation (calcitriol and alfacalcidol).
No thorough study exists establishing a connection between mental illnesses and mass shootings, Appelbaum said.
However, no study exists investigating a potential role of NO-cGMP signaling pathways modulating the enhanced eosinophil adhesion in response to CC-chemokines.
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