In general, the higher level of classification means that fewer officials have access to it.
As demonstrated in Figure 1, a higher level of classification accuracy is achieved by using all three datasets than can be achieved from any one individual dataset.
We mainly used the therapeutic subgroups (2nd level of the classification, e.g. A10 = anti-diabetic drugs), but a higher level of classification was sometimes required to identify a specific disease (e.g. therapy against HIV disease).
None of the companies involved in such partnerships are named; these details are guarded by still higher levels of classification.
The classification presented here follows J.S. Nelson and, at the higher levels of classification, incorporates the work of G.D. Johnson, A.C. Gill, R. Mooi, C. Patterson, and M.L.J. Stiassny, among others.
This development has caused many biologists to abandon the Linnean system, primarily at the higher levels of classification, rather than at the genus and species levels.
Questions regarding the relationships at the higher levels of classification are still unsettled, although much progress has been made, largely through the research of American ichthyologist G.D. Johnson.
"So what do they call the millions of documents at higher levels of classification?" Dr. Lee's lawyers said the new development makes their client's actions seem less like the systematic looting of the nation's top nuclear secrets, as the government contends, and more like a research misdemeanor, as the defense has argued.
Hence some brachiopod taxonomists believe it is premature to define higher levels of classification such as order, and recommend instead a bottom-up approach that identifies genera and then groups these into intermediate groups.
However, some taxonomists believe it is premature to suggest higher levels of classification such as order and recommend a bottom-up approach that identifies genera and then groups these into intermediate groups.
However due to the potential for cross-hybridization at the taxon-level, the majority of our subsequent analyses was performed at higher levels of classification.
