But in many research applications not all databases contain a unique ID number.
These efforts have also been hindered because not all databases are up to date and reliable, and some locus-specific databases are small operations [ 31, 70].
As not all databases enabled the use of search limiters, articles not satisfying these criteria were also removed during the first exclusion.
Since not all databases used the uniform IDs, such as Uniprot [ 27] or GenBank [ 28], we removed redundant PPIs based on the protein sequences in the same species.
Many citations are poorly indexed, and not all databases have systems for importing search results into reference management or review management software.
Language and syntax were adapted to individual databases: for example, PubMed allowed title/abstract searches but not all databases allowed this, so in these cases only the abstract was searched.
Performing separate comparisons allows a search for matching sequences based on the identity of any gene known from each species as well as query for genes which have matches in some but not all databases.
The only real asset that these organizations provide to candidates is the ability to access databases of mailing lists of registered voters--but these databases are not all that hard to come by in today's highly computerized world.
