The latest round in the long-running debate on animal research was triggered by a research paper, which concluded that there was no longer any need for experiments on primates involving movement restraint or fluid deprivation.
To further exploit this framework, the scarcity and variability of samples in our database points to a need for further experiments with larger populations to account for the variety within one group of MDD patients.
Because of the paucity of data relating capacity and opportunity attributes to realized function (e.g. growth, consumption rate, survival), there continues to be a need for manipulative experiments to assess the developmental status of restoration sites.
These simulated alterations of the truth tables suggest a need for further experiments (see discussion).
Obviously, there is still a need for animal experiments to understand and characterize all the mechanisms involved in hepatotoxicity.
In summary, there is a need for controlled experiments in laboratory and field settings for those stressors (e.g., toxicants, nutrients, turbidity) amenable to manipulation.
However, as perhaps many frail elderly are unaware of the types of help available, there is a need for care experiments with transmural collaboration among health professionals, which might increase the quality of (primary) care for frail persons at home.
There is a considerable need for experiments to fill many missing "gaps" in the data, and various experiments are suggested.
There is a real need for experiments in which results from PC-MRI and from other techniques are compared directly in the same animals or patients.
