| Entrez Overview |
|
|
|
|
|
|
|
|
|
|
|
|
| • | Hard linkages
between associated |
||||||||||
| records in the
different databases |
|||||||||||
| – | ID numbers are
used as keys |
||||||||||
| • | Soft linkages
between related |
||||||||||
| records within
each database |
|||||||||||
| • | Connections to
other resources |
||||||||||
| – | LinkOut |
||||||||||